Yamaha Aerox GDR155-R, Aerox GDR155-A, Aerox GDR155 Owner's manual

Yamaha Aerox GDR155-R, Aerox GDR155-A, Aerox GDR155 Owner's manual
Read this manual carefully before operating this vehicle.
OWNER’S MANUAL
GDR155/GDR155-R/GDR155-A
BF6-F8199-EY
[English (E)]
DIC183
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EAU46093
Read this manual carefully before operating this vehicle. This manual should stay with this vehicle if it is sold.
UBF6EYE0.book Page 1 Friday, July 14, 2017 3:39 PM
Introduction
EAU10114
Welcome to the Yamaha world of motorcycling!
As the owner of the GDR155/GDR155-R/GDR155-A, you are benefiting from Yamaha’s vast experience and newest technology regarding the design and manufacture of high-quality products, which have earned Yamaha a reputation for dependability.
Please take the time to read this manual thoroughly, so as to enjoy all advantages of your GDR155/GDR155-R/GDR155-A.
The Owner’s Manual does not only instruct you in how to operate, inspect and maintain your scooter, but also in how to
safeguard yourself and others from trouble and injury.
In addition, the many tips given in this manual will help keep your scooter in the best possible condition. If you have any
further questions, do not hesitate to contact your Yamaha dealer.
The Yamaha team wishes you many safe and pleasant rides. So, remember to put safety first!
Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most current product information available at the time of printing, there may be minor discrepancies between your scooter and this
manual. If there is any question concerning this manual, please consult a Yamaha dealer.
EWA12412
WARNING
Please read this manual carefully and completely before operating this scooter.
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Important manual information
EAU10134
Particularly important information is distinguished in this manual by the following notations:
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury
or death.
WARNING
A WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
NOTICE
A NOTICE indicates special precautions that must be taken to avoid damage to the
vehicle or other property.
TIP
A TIP provides key information to make procedures easier or clearer.
*Product and specifications are subject to change without notice.
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Important manual information
EAU37432
GDR155/GDR155-R/GDR155-A
OWNER’S MANUAL
©2017 by Thai Yamaha Motor Co., Ltd.
1st edition, July 2017
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Thai Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Thailand.
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Table of contents
Location of important labels........... 1-1
Safety information............................ 2-1
Further safe-riding points ............... 2-5
Helmets .......................................... 2-6
Description ....................................... 3-1
Left view ......................................... 3-1
Right view....................................... 3-2
Controls and instruments ............... 3-3
Smart key system (GDR155-A) ....... 4-1
Smart key system........................... 4-1
Operating range of the smart key
system......................................... 4-2
Handling of the smart key and
mechanical keys ......................... 4-3
Smart key ....................................... 4-5
Replacing the smart key battery..... 4-6
Main switch .................................... 4-7
Fuel tank cap lid opening and
closing....................................... 4-10
Seat opening and closing............. 4-11
Stop and Start System
(GDR155-A) ....................................... 5-1
Stop and Start System ................... 5-1
Stop and Start System operation... 5-1
Instrument and control functions ...6-1
Main switch/steering lock
(GDR155/GDR155-R) ..................6-1
Keyhole cover .................................6-2
Indicator lights and warning
lights ............................................6-3
Multi-function meter unit.................6-5
Handlebar switches ......................6-10
Front brake lever ...........................6-11
Rear brake lever ............................6-11
ABS (for ABS models) ...................6-11
Fuel tank cap ................................6-12
Fuel ...............................................6-13
Fuel tank overflow hose ................6-14
Catalytic converter ........................6-14
Seat (GDR155/GDR155-R) ...........6-15
Helmet holders..............................6-15
Storage compartments .................6-16
Sidestand ......................................6-17
Ignition circuit cut-off system .......6-18
Auxiliary DC jack ...........................6-20
For your safety – pre-operation
checks ...............................................7-1
Operation and important riding
points .................................................8-1
Starting the engine..........................8-1
Starting off ......................................8-2
Acceleration and deceleration ........8-3
Braking............................................8-3
Tips for reducing fuel
consumption ............................... 8-3
Engine break-in............................... 8-4
Parking............................................ 8-4
Periodic maintenance and
adjustment ........................................ 9-1
Owner’s tool kit............................... 9-1
Periodic maintenance chart for the
emission control system ............. 9-2
General maintenance and
lubrication chart .......................... 9-3
Removing and installing panels...... 9-7
Checking the spark plug................. 9-8
Engine oil and oil strainer ............. 9-10
Final transmission oil .................... 9-12
Coolant ......................................... 9-13
Air filter and V-belt case air filter
elements.................................... 9-15
Checking the throttle grip
free play..................................... 9-17
Valve clearance............................. 9-17
Tires .............................................. 9-18
Cast wheels .................................. 9-19
Checking the front brake lever
free play..................................... 9-20
Adjusting the rear brake lever
free play..................................... 9-20
Checking the front brake pads
and rear brake shoes ............... 9-21
Checking the brake fluid level ...... 9-22
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Table of contents
Changing the brake fluid ..............9-23
Checking the V-belt.......................9-23
Checking and lubricating the
cables.........................................9-23
Checking and lubricating the
throttle grip and cable................9-24
Lubricating the front and rear
brake levers................................9-24
Checking and lubricating the
centerstand and sidestand ........9-25
Checking the front fork..................9-25
Checking the steering ...................9-26
Checking the wheel bearings ........9-26
Battery ...........................................9-27
Replacing the fuses.......................9-28
Headlight .......................................9-30
Replacing an auxiliary light bulb....9-30
Tail/brake light...............................9-31
Replacing a front turn signal
light bulb ....................................9-31
Replacing a rear turn signal
light bulb ....................................9-32
Replacing the license plate
light bulb ....................................9-33
Troubleshooting ............................9-33
Troubleshooting charts .................9-36
Emergency mode (GDR155-A) ......9-38
Scooter care and storage ..............10-1
Matte color caution .......................10-1
Care ...............................................10-1
Storage ......................................... 10-3
Specifications ................................. 11-1
Consumer information................... 12-1
Identification numbers .................. 12-1
Vehicle data recording .................. 12-2
Index ................................................ 13-1
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Location of important labels
EAU10385
1
Read and understand all of the labels on your vehicle. They contain important information for safe and proper operation of
your vehicle. Never remove any labels from your vehicle. If a label becomes difficult to read or comes off, a replacement
label is available from your Yamaha dealer.
1
2
1-1
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Location of important labels
1
1
2
100kPa=1bar
kPa, psi
kPa, psi
200, 29
225, 33
200, 29
225, 33
2BL-F1668-00
1-2
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Safety information
EAU1026B
2
Be a Responsible Owner
As the vehicle’s owner, you are responsible for the safe and proper operation of your scooter.
Scooters are single-track vehicles.
Their safe use and operation are dependent upon the use of proper riding
techniques as well as the expertise of
the operator. Every operator should
know the following requirements before riding this scooter.
He or she should:
 Obtain thorough instructions from
a competent source on all aspects
of scooter operation.
 Observe the warnings and maintenance requirements in this Owner’s Manual.
 Obtain qualified training in safe
and proper riding techniques.
 Obtain professional technical service as indicated in this Owner’s
Manual and/or when made necessary by mechanical conditions.
 Never operate a scooter without
proper training or instruction. Take
a training course. Beginners
should receive training from a certified instructor. Contact an authorized scooter dealer to find out
about the training courses nearest
you.
Safe Riding
Perform the pre-operation checks
each time you use the vehicle to make
sure it is in safe operating condition.
Failure to inspect or maintain the vehicle properly increases the possibility of
an accident or equipment damage.
See page 7-1 for a list of pre-operation
checks.
 This scooter is designed to carry
the operator and a passenger.
 The failure of motorists to detect
and recognize scooters in traffic is
the predominating cause of automobile/scooter accidents. Many
accidents have been caused by
an automobile driver who did not
see the scooter. Making yourself
2-1
conspicuous appears to be very
effective in reducing the chance of
this type of accident.
Therefore:
• Wear a brightly colored jacket.
• Use extra caution when you are
approaching
and
passing
through intersections, since intersections are the most likely
places for scooter accidents to
occur.
• Ride where other motorists can
see you. Avoid riding in another
motorist’s blind spot.
• Never maintain a scooter without proper knowledge. Contact
an authorized scooter dealer to
inform you on basic scooter
maintenance. Certain maintenance can only be carried out
by certified staff.
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Safety information
 Many accidents involve inexperienced operators. In fact, many operators who have been involved in
accidents do not even have a current driver’s license.
• Make sure that you are qualified
and that you only lend your
scooter to other qualified operators.
• Know your skills and limits.
Staying within your limits may
help you to avoid an accident.
• We recommend that you practice riding your scooter where
there is no traffic until you have
become thoroughly familiar with
the scooter and all of its controls.
 Many accidents have been
caused by error of the scooter operator. A typical error made by the
operator is veering wide on a turn
due to excessive speed or undercornering (insufficient lean angle
for the speed).
• Always obey the speed limit and
never travel faster than warranted by road and traffic conditions.
• Always signal before turning or
changing lanes. Make sure that
other motorists can see you.
 The posture of the operator and
passenger is important for proper
control.
• The operator should keep both
hands on the handlebar and
both feet on the operator footrests during operation to maintain control of the scooter.
• The passenger should always
hold onto the operator, the seat
strap or grab bar, if equipped,
with both hands and keep both
feet on the passenger footrests.
Never carry a passenger unless
he or she can firmly place both
feet on the passenger footrests.
 Never ride under the influence of
alcohol or other drugs.
 This scooter is designed for onroad use only. It is not suitable for
off-road use.
2-2
Protective Apparel
The majority of fatalities from scooter
accidents are the result of head injuries. The use of a safety helmet is the
single most critical factor in the prevention or reduction of head injuries.
 Always wear an approved helmet.
 Wear a face shield or goggles.
Wind in your unprotected eyes
could contribute to an impairment
of vision that could delay seeing a
hazard.
 The use of a jacket, substantial
shoes, trousers, gloves, etc., is effective in preventing or reducing
abrasions or lacerations.
 Never wear loose-fitting clothes,
otherwise they could catch on the
control levers or wheels and cause
injury or an accident.
 Always wear protective clothing
that covers your legs, ankles, and
feet. The engine or exhaust system become very hot during or after operation and can cause
burns.
 A passenger should also observe
the above precautions.
2
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Safety information
2
Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon
monoxide, a deadly gas. Breathing
carbon monoxide can cause headaches, dizziness, drowsiness, nausea,
confusion, and eventually death.
Carbon Monoxide is a colorless, odorless, tasteless gas which may be
present even if you do not see or smell
any engine exhaust. Deadly levels of
carbon monoxide can collect rapidly
and you can quickly be overcome and
unable to save yourself. Also, deadly
levels of carbon monoxide can linger
for hours or days in enclosed or poorly
ventilated areas. If you experience any
symptoms of carbon monoxide poisoning, leave the area immediately, get
fresh air, and SEEK MEDICAL TREATMENT.
 Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rapidly reach dangerous levels.
 Do not run engine in poorly ventilated or partially enclosed areas
such as barns, garages, or carports.
 Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loading
Adding accessories or cargo to your
scooter can adversely affect stability
and handling if the weight distribution
of the scooter is changed. To avoid the
possibility of an accident, use extreme
caution when adding cargo or accessories to your scooter. Use extra care
when riding a scooter that has added
cargo or accessories. Here, along with
the information about accessories below, are some general guidelines to follow if loading cargo to your scooter:
The total weight of the operator, passenger, accessories and cargo must
not exceed the maximum load limit.
Operation of an overloaded vehicle
could cause an accident.
Maximum load:
153 kg (337 lb) (GDR155-A,
GDR155-R)
154 kg (340 lb) (GDR155)
2-3
When loading within this weight limit,
keep the following in mind:
 Cargo and accessory weight
should be kept as low and close to
the scooter as possible. Securely
pack your heaviest items as close
to the center of the vehicle as possible and make sure to distribute
the weight as evenly as possible
on both sides of the scooter to
minimize imbalance or instability.
 Shifting weights can create a sudden imbalance. Make sure that
accessories and cargo are securely attached to the scooter before riding. Check accessory
mounts and cargo restraints frequently.
• Properly adjust the suspension
for your load (suspension-adjustable models only), and
check the condition and pressure of your tires.
• Never attach any large or heavy
items to the handlebar, front
fork, or front fender. Such items
can create unstable handling or
a slow steering response.
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Safety information
 This vehicle is not designed to
pull a trailer or to be attached to
a sidecar.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are available only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection
to Yamaha manufacture parts and accessories or offer other modifications
for Yamaha vehicles. Yamaha is not in
a position to test the products that
these aftermarket companies produce.
Therefore, Yamaha can neither endorse nor recommend the use of accessories not sold by Yamaha or
modifications not specifically recommended by Yamaha, even if sold and
installed by a Yamaha dealer.
Aftermarket Parts, Accessories, and
Modifications
While you may find aftermarket products similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accessories or modifications are not suitable
because of potential safety hazards to
you or others. Installing aftermarket
products or having other modifications
performed to your vehicle that change
any of the vehicle’s design or operation
characteristics can put you and others
at greater risk of serious injury or
death. You are responsible for injuries
related to changes in the vehicle.
Keep the following guidelines in mind,
as well as those provided under “Loading” when mounting accessories.
 Never install accessories or carry
cargo that would impair the performance of your scooter. Carefully inspect the accessory before
using it to make sure that it does
not in any way reduce ground
clearance or cornering clearance,
limit suspension travel, steering
travel or control operation, or obscure lights or reflectors.
• Accessories fitted to the handlebar or the front fork area can
create instability due to improper weight distribution or aerodynamic changes. If accessories
2-4
are added to the handlebar or
front fork area, they must be as
lightweight as possible and
should be kept to a minimum.
• Bulky or large accessories may
seriously affect the stability of
the scooter due to aerodynamic
effects. Wind may attempt to lift
the scooter, or the scooter may
become unstable in cross
winds. These accessories may
also cause instability when
passing or being passed by
large vehicles.
• Certain accessories can displace the operator from his or
her normal riding position. This
improper position limits the
freedom of movement of the
operator and may limit control
ability, therefore, such accessories are not recommended.
 Use caution when adding electrical accessories. If electrical accessories exceed the capacity of
the scooter’s electrical system, an
electric failure could result, which
could cause a dangerous loss of
lights or engine power.
2
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Safety information
2
Aftermarket Tires and Rims
The tires and rims that came with your
scooter were designed to match the
performance capabilities and to provide the best combination of handling,
braking, and comfort. Other tires, rims,
sizes, and combinations may not be
appropriate. Refer to page 9-18 for tire
specifications and more information on
replacing your tires.
cation for the straps carefully so
the straps will not rub against
painted surfaces during transport.
 The suspension should be compressed somewhat by the tiedowns, if possible, so that the
scooter will not bounce excessively during transport.
Transporting the Scooter
Be sure to observe following instructions before transporting the scooter in
another vehicle.
 Remove all loose items from the
scooter.
 Point the front wheel straight
ahead on the trailer or in the truck
bed, and choke it in a rail to prevent movement.
 Secure the scooter with tie-downs
or suitable straps that are attached to solid parts of the scooter, such as the frame or upper
front fork triple clamp (and not, for
example, to rubber-mounted handlebars or turn signals, or parts
that could break). Choose the lo2-5
EAU57600
Further safe-riding points
 Be sure to signal clearly when
making turns.
 Braking can be extremely difficult
on a wet road. Avoid hard braking,
because the scooter could slide.
Apply the brakes slowly when
stopping on a wet surface.
 Slow down as you approach a
corner or turn. Once you have
completed a turn, accelerate
slowly.
 Be careful when passing parked
cars. A driver might not see you
and open a door in your path.
 Railroad crossings, streetcar rails,
iron plates on road construction
sites, and manhole covers become extremely slippery when
wet. Slow down and cross them
with caution. Keep the scooter upright, otherwise it could slide out
from under you.
 The brake pads or linings could
get wet when you wash the scooter. After washing the scooter,
check the brakes before riding.
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Safety information
 Always wear a helmet, gloves,
trousers (tapered around the cuff
and ankle so they do not flap), and
a brightly colored jacket.
 Do not carry too much luggage on
the scooter. An overloaded scooter is unstable. Use a strong cord
to secure any luggage to the carrier (if equipped). A loose load will
affect the stability of the scooter
and could divert your attention
from the road. (See page 2-3.)
EAUU0033
Helmets
Operating this vehicle without an approved motorcycle helmet increases
your chances of a severe head injury or
death in the event of an accident. The
majority of fatalities from motorcycle or
scooter accidents are the result of
head injuries. The use of a safety helmet is the single most critical factor in
the prevention or reduction of head injuries.
Always select an approved motorcycle helmet
Pay attention to the following when
choosing a motorcycle helmet.
 The helmet must meet the safety
standard “TIS”.
 The helmet size must match the
size of the rider’s head.
 Never subject a helmet to heavy
shocks.
Wearing the helmet correctly
Always connect the chin strap. In the
case of an accident, the helmet has a
much less chance of coming off if the
chin strap is connected.
2-6
Correct usage
2
ZAUU0003
Wrong usage
ZAUU0007
Types of helmets and their usage
 Half-type: use only for riding at low
speeds
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Safety information
2
ZAUU0004
ZAUU0006
 Full-type: use only for riding at low
to mid-range speeds
ZAUU0005
 Full-face-type: use for riding at
mid-range to high speeds
2-7
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Description
EAU10411
Left view
1,2 3 4
5
6
3
10,11
1.
2.
3.
4.
5.
6.
7.
8.
9
8
7
9. V-belt case air filter element (page 9-15)
10.Engine oil drain bolt A (page 9-10)
11.Engine oil drain bolt B (page 9-10)
Front storage compartment (page 6-16)
Auxiliary DC jack (page 6-20)
Fuel tank cap (page 6-12)
Owner’s tool kit (page 9-1)
Rear storage compartment (page 6-16)
Air filter element (page 9-15)
Final transmission oil filler cap (page 9-12)
Final transmission oil drain bolt (page 9-12)
3-1
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Description
EAU10421
Right view
1
2
3,4
567
3
10
1.
2.
3.
4.
5.
6.
7.
8.
9
8
9. Spark plug (page 9-8)
10.Engine oil filler cap (page 9-10)
Rear turn signal light (page 9-32)
Tail/brake light (page 9-31)
Battery (page 9-27)
Fuse box (page 9-28)
Headlight (page 9-30)
Auxiliary light (page 9-30)
Front turn signal light (page 9-31)
Coolant reservoir (page 9-13)
3-2
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Description
EAU32241
Controls and instruments
GDR155/GDR155-R
1
2
3
4
5
3
7
1.
2.
3.
4.
5.
6.
7.
Rear brake lever (page 6-11)
Left handlebar switches (page 6-10)
Multi-function meter unit (page 6-5)
Right handlebar switch (page 6-10)
Front brake lever (page 6-11)
Throttle grip (page 9-17)
Main switch/steering lock (page 6-1)
3-3
6
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Description
GDR155-A
1
2
3
4
5
3
7
1.
2.
3.
4.
5.
6.
7.
Rear brake lever (page 6-11)
Left handlebar switches (page 6-10)
Multi-function meter unit (page 6-5)
Right handlebar switches (page 6-10)
Front brake lever (page 6-11)
Throttle grip (page 9-17)
Main switch/steering lock (page 6-1)
3-4
6
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Smart key system (GDR155-A)
EAU76442
Smart key system
The smart key system enables you to
operate the vehicle without using a
mechanical key. In addition, there is an
answer-back function to help you locate the vehicle in a parking lot. (See
page 4-5.)
1
1
2
4
1
1. Main switch
2. Main switch knob
1. Vehicle mounted antenna
ECA15763
EWA14704
2
1. Smart key
2. Smart key button
WARNING
 Keep implanted pacemakers or
cardiac defibrillators, as well as
other electric medical devices
away from the vehicle mounted
antenna (see illustration).
 Radio waves transmitted by the
antenna may affect the operation of such devices when close
by.
 If you have an electric medical
device, consult a doctor or the
device manufacturer before using this vehicle.
4-1
NOTICE
The smart key system uses weak radio waves. The smart key system
may not work in the following situations.
 The smart key is placed in a location exposed to strong radio
waves or other electromagnetic
noise
 There are facilities nearby that
are emitting strong radio waves
(TV or radio towers, power
plants, broadcasting stations,
airports, etc.)
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Smart key system (GDR155-A)
4
 You are carrying or using communication equipment such as
radios or mobile phones in
close proximity of the smart key
 The smart key is in contact with
or covered by a metallic object
 Other vehicles equipped with a
smart key system are nearby
In such situations, move the smart
key to another location and perform
the operation again. If it still does
not work, use the mechanical key to
carry out the operation in emergency mode (See page 9-38).
EAU78941
Operating range of the smart
key system
The operating range of the smart key
system is about 80 cm (31.5 in) from
the main switch.
TIP
To preserve vehicle battery power, the
smart key system turns off approximately 9 days after the vehicle was last
used (the answer-back function is disabled). In this situation, simply push
the main switch knob to turn the smart
key system back on.
4-2
TIP
 As the smart key system uses
weak radio waves, the operating
range may be affected by the surrounding environment.
 When the battery of the smart key
is discharged, the smart key may
not work or its operating range
may become very small.
 If the smart key is turned off, the
vehicle will not recognize the
smart key even if it is within operating range. If the smart key system does not operate, see page
4-5 and confirm that the smart key
is turned on.
 Placing the smart key in the front
or rear storage compartment may
block communication between
the smart key and the vehicle. If
the rear storage compartment is
locked with the smart key inside,
the smart key system may be disabled. The smart key should always be carried with you.
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Smart key system (GDR155-A)
 When leaving the vehicle, make
sure you lock the steering and
take the smart key with you. It is
recommended that you turn the
smart key off.
EAU76460
Handling of the smart key and
mechanical keys
2
2
This telecommunication equipment is
in compliance with NBTC requirements.
1. Smart key
2. Mechanical key
2
1
868588
868588
1. Identification number card
2. Identification number
4-3
1
EWA17952
WARNING
 The smart key should be carried
with you. Do not store it on the
vehicle.
 When the smart key is within
operating range, exercise due
care because other people not
carrying the smart key can start
the engine and operate the vehicle.
Included with the vehicle is one smart
key, two mechanical keys, and one
identification number card. The identification number can also be found on
the inside of the smart key itself. Keep
one mechanical key and the identification number card in a safe place separate from the vehicle.
If the vehicle battery is discharged, the
mechanical key can be used to open
the seat to charge or replace the battery. Therefore it is recommended that
you carry one mechanical key together
with the smart key.
If the smart key and the smart key system identification number are both lost
or damaged, the entire smart key sys-
4
UBF6EYE0.book Page 4 Friday, July 14, 2017 3:39 PM
Smart key system (GDR155-A)
tem will need to be replaced. To prevent this, it is recommended that you
write down the identification number in case the identification number
card is lost.
ECA21573
NOTICE
4
The smart key has precision electronic components. Observe the following precautions to prevent
possible malfunction or damage.
 Do not place or store the smart
key in a storage compartment.
The smart key may be damaged
from road vibrations or excessive heat.
 Do not drop, bend, or subject
the smart key to strong impacts.
 Do not submerge the smart key
in water or other liquids.
 Do not place heavy items or excessive stress on the smart key.
 Do not leave the smart key in a
place exposed to direct sunlight, high temperature or high
humidity.
 Do not grind or attempt to modify the smart key.
 Keep the smart key away from
strong magnetic fields and
magnetic objects such as key
holders, TVs, and computers.
 Keep the smart key away from
electric medical equipment.
 Do not allow oils, polishing
agents, fuel, or any strong
chemicals to come in contact
with the smart key. The smart
key body may become discolored or cracked.
TIP
 The smart key battery life is approximately two years, but this
may vary according to operating
conditions.
 Replace the smart key battery
when the smart key system indicator light flashes for 20 seconds
when the vehicle is turned on, or
when the smart key indicator light
does not come on when the smart
key button is pushed. (See page
4-6.) After changing the smart key
battery, if the smart key system
4-4
still does not operate, check the
vehicle battery and then have a
Yamaha dealer check the vehicle.
 If the smart key continually receives radio waves, the smart key
battery will discharge quickly. (For
example, when placed in the vicinity of electrical products such as
televisions, radios, or computers.)
 You can register up to six smart
keys for the same vehicle. See a
Yamaha dealer regarding spare
smart keys.
 If a smart key is lost, contact a
Yamaha dealer immediately to
prevent the vehicle from being
stolen, etc.
UBF6EYE0.book Page 5 Friday, July 14, 2017 3:39 PM
Smart key system (GDR155-A)
EAU76470
Smart key
1
2
1. Smart key indicator light
2. Smart key button
To turn the smart key on or off
Push and hold the smart key button for
approximately 1 second to turn the
smart key on or off. When the smart
key is turned off, the vehicle cannot be
operated even if the smart key is within
operating range. To operate the vehicle, turn the smart key on and bring it
within operating range. (See Operating range of the smart key system.)
To check whether the smart key is
turned on or off
Push the smart key button to confirm
the current operating status of the
smart key.
If the smart key indicator light:
 Short flash (0.1 seconds): The
smart key is turned on.
 Long flash (0.5 seconds): The
smart key is turned off.
Remote answer-back function
Push the smart key button to operate
the answer-back function remotely.
The beeper will sound twice and all of
the turn signal lights will flash twice.
This feature is convenient for locating
your vehicle in a parking lot and other
areas.
To turn the answer-back beeper on
or off
The beeper, which sounds when the
answer-back function is operated, can
be turned on or off according to the following procedure.
1. Turn the smart key on and bring it
within operating range.
4-5
2. Turn the main switch to “OFF”,
and then push the main switch
knob once.
3. Within 9 seconds of pushing the
knob, push and hold the knob
again for 5 seconds.
4. When the beeper sounds, the setting is complete.
If the beeper:
 Sounds twice: The beeper is
turned off.
 Sounds once: The beeper is
turned on.
4
UBF6EYE0.book Page 6 Friday, July 14, 2017 3:39 PM
Smart key system (GDR155-A)
EAU76480
Replacing the smart key battery
4
Replace the battery in the following situations.
 The smart key system indicator
light flashes for about 20 seconds
when the power of the vehicle is
turned on.
 The answer-back function does
not operate when the smart key
button is pushed.
1
1. Smart key system indicator light “
”
EWA14724
WARNING
 The battery and other removable parts may cause injury if
swallowed. Keep the battery
and other removable parts away
from children.
 Do not expose the battery to direct sunlight or other heat
sources.
 Make sure the battery is installed correctly. Confirm the direction of the positive/“+” side
of the battery.
To replace the smart key battery
1. Open the smart key case as
shown.
ECA15784
NOTICE
 Use a cloth when opening the
smart key case with a screwdriver. Direct contact with hard
objects may damage or scratch
the smart key.
 Take precautions to prevent the
waterproof seal from being
damaged or contaminated by
dirt.
 Do not touch the internal circuits and terminals. This may
cause malfunctions.
 Do not apply excessive force to
the smart key when replacing
the battery.
4-6
2. Remove the battery.
UBF6EYE0.book Page 7 Friday, July 14, 2017 3:39 PM
Smart key system (GDR155-A)
EAU76490
Main switch
1
1
1
4
1. Battery
TIP
Dispose of the removed battery in accordance with local regulations.
1. Battery
4. Gently snap the smart key case
closed.
1. Main switch knob
3. Install a new battery as shown.
Note the polarity of the battery.
Specified battery:
CR2032
1
1. Smart key system indicator light “
”
The main switch is used to turn the vehicle power on and off, lock and unlock
the steering, and open the seat or fuel
tank cap lid. After pushing the main
switch knob (and confirmation with the
4-7
UBF6EYE0.book Page 8 Friday, July 14, 2017 3:39 PM
Smart key system (GDR155-A)
smart key has taken place), the main
switch can be turned while the smart
key system indicator light is on (approximately 4 seconds).
EAU76500
ON (on)
1
2
EWA18720
WARNING
4
Never turn the main switch to
“OFF”, “ ”, or “OPEN” while the vehicle is moving. Otherwise the electrical systems will be switched off,
which may result in loss of control or
an accident.
TIP
Do not push the main switch knob repeatedly or turn the main switch back
and forth excessively (beyond normal
use). To protect the main switch from
damage, the smart key system will
temporarily disable, and the smart key
system indicator light will flash. If this
occurs, wait until the indicator light
stops flashing, and then operate the
main switch.
1. Push.
2. Turn.
All electrical circuits are supplied with
the power, and the engine can be started.
To turn the vehicle power on
1. Turn the smart key on and bring it
within operating range.
2. Push the main switch knob and
the smart key indicator light will
come on for approximately 4 seconds.
The main switch positions are described below.
3. While the smart key system indicator light is on, turn the main
switch to “ON”. All of the turn signal lights flash twice and the vehicle power turns on.
TIP
 If the vehicle battery voltage is
low, the turn signal lights will not
flash.
 See “Emergency mode” on page
9-38 for information on turning the
vehicle power on without the
smart key.
EAU76510
OFF (off)
1
1. Turn.
All electrical systems are off.
4-8
UBF6EYE0.book Page 9 Friday, July 14, 2017 3:39 PM
Smart key system (GDR155-A)
To turn the vehicle power off
1. With the smart key turned on and
within operating range, turn the
main switch to “OFF”.
2. The turn signal lights flash once
and the vehicle power turns off.
TIP
When the main switch is turned to
“OFF” but the smart key cannot be
confirmed (the smart key is either outside operation range or has been
turned off), the beeper will sound for 3
seconds and the smart key system indicator light will flash for 30 seconds.
 During this 30 seconds, the main
switch can be freely operated.
 After 30 seconds, the vehicle
power will turn off automatically.
 To turn the vehicle power off immediately, push the main switch
knob four times within 2 seconds.
EAU76520
“ ” (lock)
1
2
To unlock the steering
1
2
4
1. Push.
2. Turn.
1. Push.
2. Turn.
The steering is locked and all electrical
systems are off.
To lock the steering
1. Turn the handlebar all the way to
the left.
2. With the smart key turned on and
within operating range, turn and
push the main switch to “ ”.
TIP
If the steering will not lock, try turning
the handlebar back to the right slightly.
4-9
1. With the smart key turned on and
within operating range, push the
main switch knob.
2. While the smart key system indicator light is on, push and turn the
main switch to the desired position.
UBF6EYE0.book Page 10 Friday, July 14, 2017 3:39 PM
Smart key system (GDR155-A)
EAU76530
Fuel tank cap lid opening and
closing
1
To open the fuel tank cap lid
1. With the smart key on and within
operating range, push the main
switch knob.
4
1
2
1. Push.
2. Turn.
2. While the smart key system indicator light is on, turn the main
switch to “OPEN”.
3. Push the “FUEL” button to open
the fuel tank cap lid.
1. “FUEL” button
TIP
When the main switch is in the “OPEN”
position and the smart key is moved
out of operating range, the beeper will
sound. The beeper will also sound if
the main switch is left in the “OPEN”
position for 3 minutes. To stop the
beeper, move the smart key back to
within operating range or turn the main
switch to “OFF”.
To close the fuel tank cap lid
Push the fuel tank cap lid until it is
closed.
4-10
TIP
Make sure that the lid is securely
closed before riding.
UBF6EYE0.book Page 11 Friday, July 14, 2017 3:39 PM
Smart key system (GDR155-A)
position for 3 minutes. To stop the
beeper, move the smart key back to
within operating range or turn the main
switch to “OFF”.
EAU76541
Seat opening and closing
To open the seat
1
To open the seat via the main switch
1. With the smart key on and within
operating range, push the main
switch knob.
1
2
1. “SEAT” button
3. Push the “SEAT” button, and then
lift the rear of the seat.
To open the seat with the mechanical
key
1. Open the keyhole cover.
2. Insert the mechanical key into the
seat lock, and then turn it clockwise.
3
1. Push.
2. Turn.
2. While the smart key system indicator light is on, turn the main
switch to “OPEN”.
1
1. Keyhole cover
2. Seat lock
3. Unlock.
TIP
When the main switch is in the “OPEN”
position and the smart key is moved
out of operating range, the beeper will
sound. The beeper will also sound if
the main switch is left in the “OPEN”
4-11
3. Lift the rear of the seat.
2
4
UBF6EYE0.book Page 12 Friday, July 14, 2017 3:39 PM
Smart key system (GDR155-A)
ECA24020
NOTICE
Make sure that the keyhole cover is
installed when the mechanical key is
not being used.
4
To close the seat
Close the seat and push down on the
rear to lock it in position.
TIP
Make sure that the seat is properly secured before riding.
4-12
UBF6EYE0.book Page 1 Friday, July 14, 2017 3:39 PM
Stop and Start System (GDR155-A)
EAU76823
Stop and Start System
the battery could become discharged and it may not be possible
to restart the engine due to insufficient battery voltage.
EAU76671
Stop and Start System operation
EAU76683
1
1. Stop and Start System indicator light “
A
”
The Stop and Start System is a system
that stops the engine automatically
when the vehicle is stopped while the
Stop and Start System indicator light is
on to prevent noise, control exhaust
emissions, and reduce fuel consumption.
When the rider turns the throttle grip
slightly, the engine restarts automatically and the vehicle starts off.
TIP
 Although the engine normally
stops at the same time the vehicle
is stopped, it may take a while until the engine stops when operating the vehicle under 10km/h such
as in heavy traffic.
 If you think the battery voltage has
decreased because the engine
cannot be started using the starter
switch or for some other reason,
do not turn on the Stop and Start
System.
 Have a Yamaha dealer check the
battery at the intervals specified in
the periodic maintenance chart.
Activating the Stop and Start System
1. Turn the main switch on.
ON
5
2. Set the Stop and Start System
switch to “ A ”.
A
A
A
ECA23961
NOTICE
When parking the vehicle or leaving
the vehicle unattended, be sure to
turn the main switch off. If the Stop
and Start System is left turned on,
5-1
UBF6EYE0.book Page 2 Friday, July 14, 2017 3:39 PM
Stop and Start System (GDR155-A)
5
3. When the vehicle confirms that the
following conditions are met, the
Stop and Start System activates
and the Stop and Start System indicator light comes on.
 The Stop and Start System
switch is set to “ A ”.
 After the engine was warmed
up, the engine was left idling
for a certain period of time.
 The vehicle has traveled at a
speed of 10 km/h or higher.
A
A
1
TIP
To preserve battery power, the Stop
and Start System may not activate.
2
1. On
2. Flashing
A
EAU76831
A
4. To turn off the Stop and Start System, set the Stop and Start System switch to “ A ”.
Stop the engine
After the “ A ” indicator light on the
multi-function meter comes on, the engine stops automatically when the engine is left idling when the vehicle is
stopped and the throttle grip is in the
fully closed position.
At this time, the “ A ” indicator light on
the multi-function meter starts flashing
to indicate that the engine is currently
stopped by the Stop and Start System.
5-2
A
EAU76703
Restart the engine
If you turn the throttle grip while the
Stop and Start System indicator light is
flashing and the engine is stopped, the
engine restarts automatically and
the “ A ” indicator light stops flashing.
UBF6EYE0.book Page 3 Friday, July 14, 2017 3:39 PM
Stop and Start System (GDR155-A)
Stop and Start System is left turned
on, the engine could start and the
vehicle could start moving if the
throttle grip is turned accidentally.
OFF
A
1
2
1. Flashing
2. Off
EWA18730
WARNING
Do not turn the throttle grip quickly
when the Stop and Start System is
activated and the engine is stopped.
Otherwise, the vehicle could start
moving unexpectedly after the engine restarts.
TIP
 When the sidestand is lowered,
the Stop and Start System is deactivated.
 If the Stop and Start System does
not operate correctly, have a
Yamaha dealer check the vehicle.
EAU76711
Precautions when using the Stop
and Start System
In order to prevent accidents due to
improper operation, carefully read and
observe the following precautions.
EWA18741
WARNING
When walking while pushing the vehicle, be sure to turn the main switch
off. If the vehicle is pushed while the
5-3
5
EWA18751
WARNING
When placing the vehicle on the
centerstand, be sure to turn the
main switch off. If the vehicle is
placed on the centerstand while the
Stop and Start System is left turned
on, the engine could start and the
vehicle could start moving if the
throttle grip is turned accidentally.
UBF6EYE0.book Page 4 Friday, July 14, 2017 3:39 PM
Stop and Start System (GDR155-A)
OFF
5
OFF
EWA18771
WARNING
 When leaving the vehicle unattended, be sure to turn the main
switch off.
 Do not leave the Stop and Start
System turned on when parking
the vehicle. Otherwise, the engine could start and the vehicle
could start moving if the throttle
grip is turned accidentally.
EWA18781
WARNING
Before performing maintenance, be
sure to turn the main switch off. If
maintenance is performed while the
Stop and Start System is turned on,
the engine could start and the vehicle could start moving if the throttle
grip is turned.
OFF
5-4
UBF6EYE0.book Page 1 Friday, July 14, 2017 3:39 PM
Instrument and control functions
EAUU1761
TIP
 The meter lighting, taillight, license
plate light and auxiliary light come
on automatically when the key is
turned to “ON”.
 The fuel pump can be heard when
the key is turned to “ON”.
Main switch/steering lock
(GDR155/GDR155-R)
FUEL
PUSH
SHUT
SEAT
To lock the steering
1
2
EAUU1131
OFF
All electrical systems are off. The key
can be removed.
ZAUV0423
The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering, to open the
seat, and to open the fuel tank cap.
The various main switch positions are
described below.
EAUU1043
LOCK
The steering is locked, and all electrical
systems are off. The key can be removed.
TIP
The main switch is equipped with a
keyhole shutter.
1. Push.
2. Turn.
1. Turn the handlebars all the way to
the left.
2. Push the key in from the “OFF”
position, and then turn it to
“LOCK” while still pushing it.
3. Remove the key.
TIP
If the steering will not lock, try turning
the handlebars back to the right slightly.
EAU65810
ON
All electrical circuits are supplied with
power, and the engine can be started.
The key cannot be removed.
6-1
6
UBF6EYE0.book Page 2 Friday, July 14, 2017 3:39 PM
Instrument and control functions
To unlock the steering
1
EAUU0822
Keyhole cover
To close the keyhole cover
2
2
1
1. Push.
2. Turn.
6
Press the “PUSH SHUT” button to
close the keyhole cover.
1. Ignition key
2. Shutter key
Push the key in, and then turn it to
“OFF” while still pushing it.
To open the keyhole cover
EWAU0042
WARNING
 Never turn the key to “OFF” or
“LOCK” while the vehicle is
moving; otherwise, the electrical systems will be switched off,
which may result in loss of control or an accident.
 If the vehicle turns over, and after placing it upright, ensure
that there is no fuel leakage. If
fuel is leaking, have a Yamaha
dealer check the vehicle.
Insert the key head into the keyhole
cover receptacle as shown, and then
turn the key to the right to open the
cover.
6-2
UBF6EYE0.book Page 3 Friday, July 14, 2017 3:39 PM
Instrument and control functions
EAU77122
Indicator lights and warning
lights
GDR155-A
EAU11081
1
2
GDR155/GDR155-R
1
High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
2
EAU67441
8 76
5
1.
2.
3.
4.
5.
43
Left turn signal indicator light “ ”
Right turn signal indicator light “ ”
Coolant temperature warning light “
Engine trouble warning light “
”
High beam indicator light “
”
”
543
1.
2.
3.
4.
5.
6.
Left turn signal indicator light “ ”
Right turn signal indicator light “ ”
Stop and Start System indicator light “ A ”
Coolant temperature warning light “ ”
Engine trouble warning light “
”
Anti-lock Brake System (ABS) warning
light “ ABS ”
7. High beam indicator light “
”
8. Smart key system indicator light “ ”
EAU11032
Turn signal indicator lights “ ”
and “ ”
Each indicator light will flash when its
corresponding turn signal lights are
flashing.
6-3
Coolant temperature warning
light “ ”
This warning light comes on if the engine overheats. If this occurs, stop the
engine immediately and allow the engine to cool.
The electrical circuit of the warning
light can be checked by turning the
main switch on. The warning light
should come on for a few seconds,
and then go off.
If the warning light does not come on
initially when main switch is turned on,
or if the warning light remains on, have
a Yamaha dealer check the electrical
circuit.
ECA10022
NOTICE
Do not continue to operate the engine if it is overheating.
6
UBF6EYE0.book Page 4 Friday, July 14, 2017 3:39 PM
Instrument and control functions
EAUU1961
TIP
If the engine overheats, see page 9-37
for further instructions.
EAU42776
6
Engine trouble warning light “ ”
This warning light comes on if a problem is detected in the electrical circuit
monitoring the engine. If this occurs,
have a Yamaha dealer check the selfdiagnosis system. (See page 6-9 for an
explanation of the self-diagnosis device.)
The electrical circuit of the warning
light can be checked by turning the
main switch on. The warning light
should come on for a few seconds,
and then go off.
If the warning light does not come on
initially when the main switch is turned
on, or if the warning light remains on,
have a Yamaha dealer check the electrical circuit.
ABS warning light “ ” (for ABS
models)
In normal operation, the ABS warning
light comes on when the main switch is
turned on, and goes off after traveling
at a speed of 10 km/h (6 mi/h) or higher.
If the ABS warning light:
 does not come on when the main
switch is turned on
 comes on or flashes while riding
 does not go off after traveling at a
speed of 10 km/h (6 mi/h) or higher
The ABS may not work correctly. If any
of the above occurs, have a Yamaha
dealer check the system as soon as
possible. (See page 6-11 for an explanation of the ABS.)
ABS
EWA16041
WARNING
If the ABS warning light does not go
off after traveling at a speed of 10
km/h (6 mi/h) or higher, or if the
warning light comes on or flashes
while riding, the brake system reverts to conventional braking. If either of the above occurs, or if the
6-4
warning light does not come on at
all, use extra caution to avoid possible wheel lock during emergency
braking. Have a Yamaha dealer
check the brake system and electrical circuits as soon as possible.
TIP
The ABS warning light may come on
while accelerating the engine with the
vehicle on its centerstand, but this
does not indicate a malfunction.
EAU61654
Smart key system indicator
light “ ” (GDR155-A)
This indicator light communicates the
status of the smart key system. When
the smart key system is operating normally, this indicator light will be off. If
there is an error in the smart key system, the indicator light will flash. The
indicator light will also flash when communication between the vehicle and
smart key takes place and when certain smart key system operations are
carried out.
UBF6EYE0.book Page 5 Friday, July 14, 2017 3:39 PM
Instrument and control functions
EAU77153
TIP
When the start switch is pushed, the
indicator light will come on for about
one second and then go off. If the indicator light does not come on or go off
as normal, have a Yamaha dealer
check the vehicle.
Multi-function meter unit
1
2
3
4
TIP
Even if the Stop and Start Switch is set
to “ A ”, this indicator light may not
come on. (See page 5-1.)
7
1.
2.
3.
4.
5.
6.
7.
a speedometer
a tachometer
a VVA indicator
a clock
a fuel meter
a multi-function display
TIP
Be sure to turn the main switch on before using the “RESET/SELECT” button.
EAU76382
Stop and Start System indicator
light “ A ” (GDR155-A)
This indicator light comes on when the
Stop and Start System activates. The
indicator light will flash when the engine is automatically stopped by the
Stop and Start System.






6 5
Fuel meter
Tachometer
Speedometer
VVA (variable valve actuation) indicator
Clock
Multi-function display
“RESET/SELECT” button
Speedometer
6
1
EWA12423
WARNING
Be sure to stop the vehicle before
making any setting changes to the
multi-function meter unit. Changing
settings while riding can distract the
operator and increase the risk of an
accident.
The multi-function meter
equipped with the following:
6-5
unit
is
1. Speedometer
The speedometer shows the vehicle’s
traveling speed.
UBF6EYE0.book Page 6 Friday, July 14, 2017 3:39 PM
Instrument and control functions
Tachometer
1
1. Tachometer
6
The electric tachometer allows the rider to monitor the engine speed and
keep it within the ideal power range.
VVA indicator
1
This model is equipped with variable
valve actuation (VVA) for good fuel
economy and acceleration in both the
low-speed and high-speed ranges.
The VVA indicator comes on when the
variable valve actuation system has
switched to the high-speed range.
The VVA indicator can be turned off (or
on) as follows:
1. Turn the main switch to “OFF”.
2. Hold the “RESET/SELECT” button
pushed and turn the main switch
to “ON”.
3. Release the “RESET/SELECT” after one second.
4. Push the “RESET/SELECT” button to turn the indicator off (or on).
TIP
Turning the VVA indicator off does not
turn off the variable valve actuation
system.
1. VVA (variable valve actuation) indicator
6-6
Clock
1
1. Clock
The clock uses a 12-hour time system.
To set the clock
1. With the display in the odometer
mode, push the “RESET/SELECT”
button for four seconds.
2. When the hour digits start flashing, use the “RESET/SELECT”
button to set the hours.
3. Push the “RESET/SELECT” button for two seconds, and the minutes will start flashing.
4. Use the “RESET/SELECT” button
to set the minutes.
5. Push the “RESET/SELECT” button for two seconds to start the
clock.
UBF6EYE0.book Page 7 Friday, July 14, 2017 3:39 PM
Instrument and control functions
TIP
If you do not push the “RESET/SELECT” button for 90 seconds, the
clock will not be set and will return to
the prior time.
Fuel meter
1
When the main switch is turned on, all
of the display segments of the fuel meter will appear for a few seconds, and
then the fuel meter shows the actual
fuel level.
TIP
 Do not use up all of the fuel in the
fuel tank.
 The fuel meter is equipped with a
self-diagnosis function. If a problem is detected in the fuel meter
electrical circuit, all the display
segments will flash repeatedly. If
this occurs, have a Yamaha dealer
check the vehicle.
 an odometer
 a tripmeter
 an instantaneous fuel consumption display
 an average fuel consumption display
 a battery voltage indicator
 an error code display
Push the “RESET/SELECT” button to
switch the display between the odometer “ODO”, the tripmeter “TRIP”, the
instantaneous
fuel
consumption
“F/ECO” (km/L or L/100 km), the average fuel consumption “AVE F/ECO”
(km/L or L/100 km) and the battery
voltage “BATT” in the following order:
ECAV0041
1. Fuel meter
The fuel meter indicates the amount of
fuel in the fuel tank. The display segments of the fuel meter disappear from
“F” (full) towards “E” (empty) as the fuel
level decreases. When the last segment start flashing, refuel as soon as
possible.
NOTICE
When the fuel indicator has dropped
to only one block, refuel as soon as
possible, as the movement of fuel
when going up or downhill or when
turning may lead to the engine not
getting any fuel, resulting in engine
stop.
Multi-function display
The multi-function display is equipped
with the following:
6-7
ODO → TRIP → F/ECO → AVE F/ECO
→ BATT → ODO
6
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Instrument and control functions
Odometer mode
1
1. Odometer
6
The odometer shows the total distance
traveled by the vehicle.
TIP
 The odometer will lock at 999999
and cannot be reset.
 The tripmeter will reset and continue counting after 9999.9 is
reached. To reset the tripmeter,
while it is being displayed, press
the “RESET/SELECT” button for
at least one second.
Instantaneous
mode
fuel
consumption
 “km/L”: The distance that can be
traveled on 1.0 L of fuel under the
current riding conditions is shown.
 “L/100 km”: The amount of fuel
necessary to travel 100 km under
the current riding conditions is
shown.
To switch between the instantaneous
fuel consumption display settings,
push the “RESET/SELECT” button for
one second.
TIP
If traveling at speeds under 10 km/h, “_
_._” is displayed.
Tripmeter mode
Average fuel consumption mode
1
1. Instantaneous fuel consumption display
1
1. Tripmeter
The instantaneous fuel consumption
display can be set to either “km/L” or
“L/100 km”.
The tripmeter shows the total distance
traveled since it was last reset.
6-8
1
1. Average fuel consumption display
UBF6EYE0.book Page 9 Friday, July 14, 2017 3:39 PM
Instrument and control functions
This display shows the average fuel
consumption since it was last reset.
The average fuel consumption display
can be set to either “km/L” or “L/100
km”.
 “km/L”: The average distance that
can be traveled on 1.0 L of fuel is
shown.
 “L/100 km”: The average amount
of fuel necessary to travel 100 km
is shown.
To switch between the average fuel
consumption display settings, push
the “RESET/SELECT” button for one
second.
To reset the average fuel consumption,
push the “RESET/SELECT” button for
at least one second.
TIP
After resetting the average fuel consumption, “_ _._” will be shown until
the vehicle has traveled 0.1 km (0.06
mi).
The battery voltage indicator
This indicator shows the current
charge state of the battery.
 Over 12.8 V Full charge
 Under 12.7 V Charging is required.
TIP
If the battery voltage is less than 9.0 V,
“_ _._” will be displayed.
Self-diagnosis mode
ECA11591
NOTICE
If the display indicates an error
code, the vehicle should be checked
as soon as possible in order to avoid
engine damage.
6
1
1. Error code display
This model is equipped with a self-diagnosis device for various electrical
circuits.
If a problem is detected in any of those
circuits, the engine trouble warning
light will come on and the display will
indicate an error code.
If the display indicates any error codes,
note the code number and have a
Yamaha dealer check the vehicle.
6-9
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Instrument and control functions
EAU1234M
Handlebar switches
Right (GDR155-A)
EAU12501
Horn switch “
”
Press this switch to sound the horn.
1
Left
EAU12722
A
Start switch “ ”
With the sidestand up, push this switch
while applying the front or rear brake to
crank the engine with the starter. See
page 8-1 for starting instructions prior
to starting the engine.
A
1
2
2
3
6
1. Stop and Start System switch “
2. Start switch “ ”
1. Dimmer switch “
/
”
2. Turn signal switch “ / ”
3. Horn switch “
”
Right (GDR155/GDR155-R)
A
/
A
”
EAU76391
EAU12401
Dimmer switch “ / ”
Set this switch to “ ” for the high
beam and to “ ” for the low beam.
EAU12461
1
1. Start switch “
”
Turn signal switch “ / ”
To signal a right-hand turn, push this
switch to “ ”. To signal a left-hand
turn, push this switch to “ ”. When
released, the switch returns to the center position. To cancel the turn signal
lights, push the switch in after it has returned to the center position.
6-10
Stop and Start System
switch “ A / A ” (GDR155-A)
To turn on the Stop and Start System,
set the switch to “ A ”. To turn off the
Stop and Start System, set this switch
to “ A ”.
UBF6EYE0.book Page 11 Friday, July 14, 2017 3:39 PM
Instrument and control functions
EAU12902
Front brake lever
EAU12952
Rear brake lever
1
EAU77021
ABS (for ABS models)
This model’s ABS (anti-lock brake system) acts on the front brake system.
Operate the brakes as you normally
would with a conventional brake system. If the ABS is activated, a pulsating
sensation may be felt at the front brake
lever. In this situation, continue to apply the brakes and let the ABS work; do
not release and re-apply the brakes
(i.e., pump the brakes) as this will reduce braking effectiveness.
1
A
A
1. Front brake lever
1. Rear brake lever
The front brake lever is located on the
right side of the handlebar. To apply
the front brake, pull this lever toward
the throttle grip.
The rear brake lever is located on the
left side of the handlebar. To apply the
rear brake, pull this lever toward the
handlebar grip.
EWA16051
WARNING
Always keep a sufficient distance
from the vehicle ahead to match the
riding speed even with ABS.
 The ABS performs best with
long braking distances.
 On certain surfaces, such as
rough or gravel roads, the braking distance may be longer with
the ABS than without.
The ABS is monitored by an ECU,
which will revert the system to conventional braking if a malfunction occurs.
6-11
6
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Instrument and control functions
EAUV0681
TIP
The ABS performs a self-diagnosis test
each time the vehicle first starts off after the main switch is turned on and the
vehicle has traveled at a speed of 10
km/h (6 mi/h) or higher. During this test,
a clicking noise may be audible, and a
vibration may be felt at the brake lever,
but these do not indicate a malfunction.
Fuel tank cap
To remove the fuel tank cap
3. Turn the fuel tank cap counterclockwise and pull it off.
To install the fuel tank cap
1
ECA20100
6
NOTICE
Be careful not to damage the wheel
sensor or wheel sensor rotor; otherwise, improper performance of the
ABS will result.
2
1. Fuel tank cap
2. “
” mark
1
2
1. Fuel tank cap lid
2. Fuel tank cap
1
2
1. Front wheel sensor
2. Front wheel sensor rotor
1. Turn the main switch to “OPEN”
position.
2. Push the “FUEL” button to open
the fuel tank cap lid.
6-12
1. Insert the fuel tank cap into the
tank opening and turn it clockwise
until the “ ” marks on the cap
and tank are aligned.
2. Push the fuel tank cap lid down
into its original position. A clicking
sound can be heard when the fuel
tank cap lid is locked.
UBF6EYE0.book Page 13 Friday, July 14, 2017 3:39 PM
Instrument and control functions
EWA11092
WARNING
Make sure that the fuel tank cap is
properly closed after filling fuel.
Leaking fuel is a fire hazard.
EAU13213
Fuel
Make sure there is sufficient gasoline in
the tank.
2
1
EWA10882
WARNING
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.
1. Before refueling, turn off the engine and be sure that no one is sitting on the vehicle. Never refuel
while smoking, or while in the vicinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. Stop
filling when the fuel reaches the
bottom of the filler tube. Because
fuel expands when it heats up,
heat from the engine or the sun
can cause fuel to spill out of the
fuel tank.
6-13
1. Fuel tank filler tube
2. Maximum fuel level
3. Wipe up any spilled fuel immediately. NOTICE: Immediately
wipe off spilled fuel with a clean,
dry, soft cloth, since fuel may
deteriorate painted surfaces or
plastic parts. [ECA10072]
4. Be sure to securely close the fuel
tank cap.
EWA15152
WARNING
Gasoline is poisonous and can
cause injury or death. Handle gasoline with care. Never siphon gasoline
by mouth. If you should swallow
some gasoline or inhale a lot of gasoline vapor, or get some gasoline in
your eyes, see your doctor immedi-
6
UBF6EYE0.book Page 14 Friday, July 14, 2017 3:39 PM
Instrument and control functions
ately. If gasoline spills on your skin,
wash with soap and water. If gasoline spills on your clothing, change
your clothes.
EAU58301
Fuel tank overflow hose
This model is equipped with a catalytic
converter in the exhaust system.
EWA10863
WARNING
EAUN0750
Recommended fuel:
Regular unleaded gasoline (Gasohol
[E10] acceptable)
Fuel tank capacity:
4.6 L (1.2 US gal, 1.0 Imp.gal)
6
ECA11401
NOTICE
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,
as well as to the exhaust system.
EAU13434
Catalytic converter
1
1. Fuel tank overflow hose
Before operating the vehicle:
 Check the fuel tank overflow hose
connection and routing.
 Check the fuel tank overflow hose
for cracks or damage, and replace
it if necessary.
 Make sure that the fuel tank overflow hose is not blocked, and
clean it if necessary.
6-14
The exhaust system is hot after operation. To prevent a fire hazard or
burns:
 Do not park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.
 Park the vehicle in a place
where pedestrians or children
are not likely to touch the hot
exhaust system.
 Make sure that the exhaust system has cooled down before
doing any maintenance work.
 Do not allow the engine to idle
more than a few minutes. Long
idling can cause a build-up of
heat.
UBF6EYE0.book Page 15 Friday, July 14, 2017 3:39 PM
Instrument and control functions
ECA10702
EAU62381
NOTICE
Seat (GDR155/GDR155-R)
Use only unleaded gasoline. The use
of leaded gasoline will cause unrepairable damage to the catalytic
converter.
To open the seat
1. Insert the key into main switch and
then turn it to “OPEN” position.
EAU37482
Helmet holders
1
2
1
1. Helmet holder
The helmet holders are located under
the seat.
1. Seat lock
2. Seat
2. Push the “SEAT” button to open
the seat.
To close the seat
Push the rear of the seat down to lock
it in place.
TIP
Make sure that the seat is properly secured before riding.
6-15
To secure a helmet to a helmet holder
1. Open the seat. (See page 6-15.)
2. Attach a helmet to a helmet holder, and then securely close the
seat. WARNING! Never ride with
a helmet attached to the helmet
holder, since the helmet may hit
objects, causing loss of control
and possibly an accident. [EWA10162]
6
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Instrument and control functions
To release a helmet from a helmet
holder
Open the seat, remove the helmet from
the helmet holder, and then close the
seat.
EAUV0691
Storage compartments
Front storage compartment
Rear storage compartment
A helmet can be stored in the rear storage compartment under the seat. (See
page 4-11 for seat opening and closing
information.) To store a helmet in the
rear storage compartment, place the
helmet upside down with the front facing to the left side.
1
1
6
1. Front storage cover
To open the storage compartment,
push the front storage compartment
cover as shown.
1. Rear storage compartment
1
1. Front storage compartment
6-16
TIP
 Some helmets cannot be stored in
the rear storage compartment because of their size or shape.
 Do not leave your scooter unattended with the seat open.
 The interior of the rear storage
compartment lies outside the operating range of the smart key. If
UBF6EYE0.book Page 17 Friday, July 14, 2017 3:39 PM
Instrument and control functions
the rear storage compartment is
locked with the smart key inside,
the smart key system may be disabled. The smart key must be carried by the rider.
 Do not place the smart key, mechanical key, or identification
number tag inside the rear storage
compartment. They may get
locked inside and the smart key
system may not operate normally.
ECA15963
NOTICE
 Do not leave the seat open for
an extended period of time, otherwise the light may cause the
battery to discharge.
 Since the storage compartment
may get wet while the scooter is
being washed, wrap any articles
stored in the compartment in a
plastic bag.
 To avoid humidity from spreading through the storage compartment and to discourage
possible mold growth, wrap wet
articles in a plastic bag before
storing them in the compartment.
 Do not keep anything valuable
or breakable in the storage
compartment.
 Since the storage compartment
accumulates heat from the engine and from direct sunlight, do
not store anything susceptible
to heat, such as food or flammable items, inside the compartment.
EWA15861
WARNING
Do not exceed the following loading
limits:
 Front storage compartment: 0.2
kg (0.4 lb)
 Rear storage compartment: 3
kg (6.6 lb)
 Maximum load for the vehicle:
153 kg (337 lb) (GDR155-A,
GDR155-R)
154 kg (340 lb) (GDR155)
6-17
EAU76780
Sidestand
The sidestand is located on the left
side of the frame. Raise the sidestand
or lower it with your foot while holding
the vehicle upright.
TIP
 The built-in sidestand switch is
part of the ignition circuit cut-off
system, which cuts the ignition in
certain situations. (See the following section for an explanation of
the ignition circuit cut-off system.)
 When the sidestand is lowered,
the Stop and Start System is deactivated.
EWA10242
WARNING
The vehicle must not be ridden with
the sidestand down, or if the sidestand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control.
Yamaha’s ignition circuit cut-off
system has been designed to assist
the operator in fulfilling the respon-
6
UBF6EYE0.book Page 18 Friday, July 14, 2017 3:39 PM
Instrument and control functions
sibility of raising the sidestand before starting off. Therefore, check
this system regularly and have a
Yamaha dealer repair it if it does not
function properly.
EAUT1097
Ignition circuit cut-off system
Check the operation of the sidestand
switch according to the following procedure.
6
6-18
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Instrument and control functions
Turn the main switch on.
WARNING
• The vehicle must be placed on the centerPut the sidestand up.
stand during this inspection.
• If a malfunction is noted, have a Yamaha
dealer check the system before riding.
Push the start switch while applying
either of the brake levers. The engine will
start.
6
Put the sidestand down.
If the engine stalls:
The sidestand switch is OK.
6-19
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Instrument and control functions
EAUM2852
Auxiliary DC jack
3. Remove the auxiliary DC jack cap.
EWA14361
WARNING
To prevent electrical shock or shortcircuiting, make sure that the cap is
installed when the auxiliary DC jack
is not being used.
1
ECA15432
NOTICE
6
The accessory connected to the
auxiliary DC jack should not be used
with the engine turned off, and the
load must never exceed 12 W (1A),
otherwise the fuse may blow or the
battery may discharge.
This vehicle is equipped with an auxiliary DC jack in the front storage compartment.
A 12-V accessory connected to the
auxiliary jack can be used when the
main switch is on and should only be
used when the engine is running.
To use the auxiliary DC jack
1. Open the front storage compartment lid. (See page 6-16.)
2. Turn the main switch off.
1. Auxiliary DC jack cap
4. Turn the accessory off.
5. Insert the accessory plug into the
auxiliary DC jack.
1
1. Auxiliary DC jack
6. Turn the main switch on, and then
start the engine. (See page 8-1.)
7. Turn the accessory on.
6-20
UBF6EYE0.book Page 1 Friday, July 14, 2017 3:39 PM
For your safety – pre-operation checks
EAU15599
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
EWA11152
WARNING
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided in
this manual, have the vehicle inspected by a Yamaha dealer.
Before using this vehicle, check the following points:
ITEM
Fuel
CHECKS
• Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.
• Check fuel tank overflow hose for obstructions, cracks or damage, and check
hose connection.
PAGE
6-13, 6-14
7
Engine oil
• Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage.
9-10
Final transmission oil
• Check vehicle for oil leakage.
9-12
Coolant
• Check coolant level in reservoir.
• If necessary, add recommended coolant to specified level.
• Check cooling system for leakage.
9-13
Front brake
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in reservoir.
• If necessary, add specified brake fluid to specified level.
• Check hydraulic system for leakage.
7-1
9-21, 9-22
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For your safety – pre-operation checks
ITEM
7
CHECKS
PAGE
Rear brake
• Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary.
9-20, 9-21
Throttle grip
• Make sure that operation is smooth.
• Check throttle grip free play.
• If necessary, have Yamaha dealer adjust throttle grip free play and lubricate cable and grip housing.
9-17, 9-24
Control cables
• Make sure that operation is smooth.
• Lubricate if necessary.
9-23
Wheels and tires
• Check for damage.
• Check tire condition and tread depth.
• Check air pressure.
• Correct if necessary.
9-18, 9-19
Brake levers
• Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.
9-24
Centerstand, sidestand
• Make sure that operation is smooth.
• Lubricate pivots if necessary.
9-25
Chassis fasteners
• Make sure that all nuts, bolts and screws are properly tightened.
• Tighten if necessary.
—
Instruments, lights, signals
and switches
• Check operation.
• Correct if necessary.
—
Sidestand switch
• Check operation of ignition circuit cut-off system.
• If system is not working correctly, have Yamaha dealer check vehicle.
7-2
6-17
UBF6EYE0.book Page 1 Friday, July 14, 2017 3:39 PM
Operation and important riding points
EAU15952
EAUN0073
EAU77800
Starting the engine
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
EWA10272
WARNING
ECAN0072
ECA10251
NOTICE
NOTICE
Do not ride through deep water, otherwise the engine may be damaged.
Avoid puddles because they may be
deeper than expected.
See page 8-4 for engine break-in instructions prior to operating the vehicle for the first time.
Failure to familiarize yourself with
the controls can lead to loss of control, which could cause an accident
or injury.
8-1
In order for the ignition circuit cut-off
system to enable starting, the sidestand must be up. (See page 6-18.)
1. Turn the main switch on.
The following warning lights and
indicator lights should come on for
a few seconds, then go off.
 Engine trouble warning light
 Coolant temperature warning
light
 Turn signal indicator lights
 Stop and Start System indicator light (GDR155-A)
 Smart key system indicator
light (GDR155-A)
 ABS warning light (GDR155A)
8
UBF6EYE0.book Page 2 Friday, July 14, 2017 3:39 PM
Operation and important riding points
ECA11043
TIP
The ABS warning light should come on
and stay on until the vehicle reaches a
traveling speed of 10 km/h (6 mi/h) or
higher.
EAU45093
Starting off
NOTICE
For maximum engine life, never accelerate hard when the engine is
cold!
ECA22510
1. While pulling the rear brake lever
with your left hand and holding the
grab bar with your right hand,
push the scooter off the centerstand.
NOTICE
1
If a warning or indicator light does
not work as described above, see
page 6-3 for the corresponding
warning and indicator light circuit
check.
8
2. Close the throttle.
3. While applying the front or rear
brake, push the start switch. Release it when the engine starts.
1. Grab bar
2. Sit astride the seat, and then adjust the rear view mirrors.
3. Switch the turn signals on.
4. Check for oncoming traffic, and
then slowly turn the throttle grip
(on the right) in order to take off.
5. Switch the turn signals off.
TIP
If the engine does not start, release the
start switch after 5 seconds. Before
pressing the start switch again, wait 10
seconds to allow battery voltage to restore.
8-2
UBF6EYE0.book Page 3 Friday, July 14, 2017 3:39 PM
Operation and important riding points
EAU16782
Acceleration and deceleration
EAU16794
Braking
EWA10301
WARNING
(b)
A
(a)
The speed can be adjusted by opening
and closing the throttle. To increase
the speed, turn the throttle grip in direction (a). To reduce the speed, turn
the throttle grip in direction (b).
 Avoid braking hard or suddenly
(especially when leaning over to
one side), otherwise the scooter
may skid or overturn.
 Railroad crossings, streetcar
rails, iron plates on road construction sites, and manhole
covers become extremely slippery when wet. Therefore, slow
down when approaching such
areas and cross them with caution.
 Keep in mind that braking on a
wet road is much more difficult.
 Ride slowly down a hill, as braking downhill can be very difficult.
1. Close the throttle completely.
2. Apply both front and rear brakes
simultaneously while gradually increasing the pressure.
8-3
EAU16821
Tips for reducing fuel consumption
Fuel consumption depends largely on
your riding style. Consider the following tips to reduce fuel consumption:
 Avoid high engine speeds during
acceleration.
 Avoid high engine speeds with no
load on the engine.
 Turn the engine off instead of letting it idle for an extended length
of time (e.g., in traffic jams, at traffic lights or at railroad crossings).
8
UBF6EYE0.book Page 4 Friday, July 14, 2017 3:39 PM
Operation and important riding points
EAU16842
Engine break-in
There is never a more important period
in the life of your engine than the period
between 0 and 1600 km (1000 mi). For
this reason, you should read the following material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1600 km (1000 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throttle operation or any condition that
might result in engine overheating
must be avoided.
1600 km (1000 mi) and beyond
The vehicle can now be operated normally.
ECA10271
NOTICE
If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle.
EAU77860
Parking
When parking, turn off the Stop and
Start System and then stop the engine.
After turning off the main switch, be
sure to remove the key and take it with
you. For smart key models, be sure to
turn off the smart key and take with
you.
EWA18840
WARNING
 Since the engine and exhaust
system can become very hot,
park in a place where pedestrians or children are not likely to
touch them and be burned.
 Do not park on a slope or on soft
ground, otherwise the vehicle
may overturn, increasing the
risk of a fuel leak and fire.
 Do not park near grass or other
flammable materials which
might catch fire.
 If the Stop and Start System is
left turned on, the battery could
become discharged and it may
not be possible to restart the
engine due to insufficient battery voltage.
EAUM2012
8
0–1000 km (0–600 mi)
Avoid prolonged operation above 1/3
throttle. NOTICE: After 1000 km (600
mi) of operation, be sure to replace
the engine oil and final transmission
oil. [ECA11662]
1000–1600 km (600–1000 mi)
Avoid prolonged operation above 1/2
throttle.
8-4
UBF6EYE0.book Page 5 Friday, July 14, 2017 3:39 PM
Operation and important riding points
TIP
Even when the vehicle is parked in a location partitioned by a fence or the
glass window of a shop, if the smart
key is within operating range, other
people will be able to start the engine
and operate the vehicle. Please turn
the smart key off when leaving the vehicle. (See page 4-8.)
8
8-5
UBF6EYE0.book Page 1 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
EAU17246
EWA15123
Periodic inspection, adjustment, and
lubrication will keep your vehicle in the
safest and most efficient condition
possible. Safety is an obligation of the
vehicle owner/operator. The most important points of vehicle inspection,
adjustment, and lubrication are explained on the following pages.
The intervals given in the periodic
maintenance charts should be simply
considered as a general guide under
normal riding conditions. However, depending on the weather, terrain, geographical location, and individual use,
the maintenance intervals may need to
be shortened.
Turn off the engine when performing
maintenance
unless
otherwise
specified.
 A running engine has moving
parts that can catch on body
parts or clothing and electrical
parts that can cause shocks or
fires.
 Running the engine while servicing can lead to eye injury,
burns, fire, or carbon monoxide
poisoning – possibly leading to
death. See page 2-3 for more information about carbon monoxide.
EWA15461
EWA10322
WARNING
9
Failure to properly maintain the vehicle or performing maintenance activities incorrectly may increase
your risk of injury or death during
service or while using the vehicle. If
you are not familiar with vehicle service, have a Yamaha dealer perform
service.
EAU39692
Owner’s tool kit
WARNING
WARNING
Brake discs, calipers, drums, and
linings can become very hot during
use. To avoid possible burns, let
brake components cool before
touching them.
9-1
1
1. Owner’s tool kit
The owner’s tool kit is located on the
bottom of the seat. (See page 6-15.)
The service information included in this
manual and the tools provided in the
owner’s tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs. However, additional tools such as a torque
wrench may be necessary to perform
certain maintenance work correctly.
TIP
If you do not have the tools or experience required for a particular job, have
a Yamaha dealer perform it for you.
UBF6EYE0.book Page 2 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
EAUU0621
TIP
 The annual checks must be performed every year, except if a kilometer-based maintenance is performed instead.
 From 20000 km, repeat the maintenance intervals starting from 4000 km.
 Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills.
EAUU1294
Periodic maintenance chart for the emission control system
ODOMETER READING (whichever comes first)
NO.
ITEM
CHECK OR MAINTENANCE JOB
1 * Fuel line
• Check fuel hoses for cracks or
damage.
2 * Fuel filter
• Check condition.
• Replace if necessary.
3
Spark plug
1000 km
or
2 months
4000 km
or
6 months
8000 km
or
10 months
12000 km
or
14 months
16000 km
or
18 months
ANNUAL
CHECK
√
√
√
√
√
Every 12000 km (7500 mi)
• Check condition.
• Clean and regap.
√
• Replace.
4 * Valves
• Check engine idle speed.
6 * Exhaust system
• Check for leakage.
• Tighten if necessary.
• Replace gasket(s) if necessary.
√
9
√
Every 8000 km (5000 mi)
• Check valve clearance.
• Adjust if necessary.
5 * Fuel injection
√
√
√
9-2
√
√
√
√
√
√
√
√
√
√
√
UBF6EYE0.book Page 3 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
EAUU1287
General maintenance and lubrication chart
ODOMETER READING (whichever comes first)
NO.
ITEM
CHECK OR MAINTENANCE JOB
1 *
Diagnostic system
check
• Perform dynamic inspection using Yamaha diagnostic tool.
• Check the error codes.
2
Air filter element
• Replace.
3
Air filter check hose
• Clean.
V-belt case air filter
4 *
element
• Clean.
• Replace if necessary.
5 * Battery
• Check voltage.
• Charge if necessary.
• Check operation, fluid level and
vehicle for fluid leakage.
6 * Front brake
1000 km
or
2 months
4000 km
or
6 months
8000 km
or
10 months
12000 km
or
14 months
16000 km
or
18 months
ANNUAL
CHECK
√
√
√
√
√
√
Every 16000 km (10000 mi)
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
• Replace brake pads.
9
7 * Rear brake
• Check operation and adjust brake
lever free play.
Whenever worn to the limit
√
√
• Replace brake shoes.
8 * Brake hose
√
√
Whenever worn to the limit
• Check for cracks or damage.
• Check for correct routing and
clamping.
√
√
√
• Replace.
Every 4 years
9 * Brake fluid
• Change.
Every 2 years
10 * Wheels
• Check runout and for damage.
• Replace if necessary.
√
9-3
√
√
√
UBF6EYE0.book Page 4 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
ODOMETER READING (whichever comes first)
4000 km
or
6 months
8000 km
or
10 months
12000 km
or
14 months
16000 km
or
18 months
ANNUAL
CHECK
11 * Tires
• Check tread depth and for damage.
• Replace if necessary.
• Check air pressure.
• Correct if necessary.
√
√
√
√
√
12 * Wheel bearings
• Check bearings for looseness or
damage.
√
√
√
√
√
√
√
√
NO.
ITEM
13 * Steering bearings
14 * Chassis fasteners
CHECK OR MAINTENANCE JOB
• Check bearing play and steering
for roughness.
1000 km
or
2 months
√
• Lubricate with lithium-soapbased grease.
Every 12000 km (7500 mi)
• Make sure that all nuts, bolts and
screws are properly tightened.
√
√
√
√
√
15
Front brake lever
pivot shaft
• Lubricate with silicone grease.
√
√
√
√
√
16
Rear brake lever
pivot shaft
• Lubricate with silicone grease.
√
√
√
√
√
17
Sidestand, centerstand
• Check operation.
• Lubricate with lithium-soapbased grease.
√
√
√
√
√
√
√
√
√
√
9
√
18 * Sidestand switch
• Check operation.
19 * Front fork
• Check operation and for oil leakage.
√
√
√
√
• Check operation and shock absorber for oil leakage.
√
√
√
√
20 *
Shock absorber assembly
9-4
UBF6EYE0.book Page 5 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
ODOMETER READING (whichever comes first)
NO.
21
ITEM
Engine oil
22 * Engine oil strainer
23 * Cooling system
24
Final transmission
oil
25 * V-belt
V-belt secondary
26 *
sheave
9
1000 km
or
2 months
4000 km
or
6 months
8000 km
or
10 months
12000 km
or
14 months
16000 km
or
18 months
• Change.
• Check oil level and vehicle for oil
leakage.
√
√
√
√
√
• Clean.
√
CHECK OR MAINTENANCE JOB
• Check coolant level and vehicle
for coolant leakage.
• Change.
√
√
√
√
Every 12000 km (7500 mi)
√
• Replace.
Every 25000 km (15500 mi)
• Lubricate.
Every 12000 km (7500 mi)
Moving parts and
cables
√
Every 8000 km (5000 mi)
√
• Check for damage and wear.
28
Lights, signals and
switches
√
Every 3 years
√
• Check operation.
30 *
√
• Check vehicle for oil leakage.
Front and rear
brake switches
29 * Throttle grip
√
• Change with Yamaha genuine
coolant.
27 *
ANNUAL
CHECK
√
√
√
√
√
√
• Lubricate.
√
√
√
√
√
• Check operation.
• Check throttle grip free play, and
adjust if necessary.
• Lubricate cable and grip housing.
√
√
√
√
√
√
√
√
√
√
• Check operation.
• Adjust headlight beam.
√
√
√
9-5
UBF6EYE0.book Page 6 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
EAU66860
TIP
 Air filter
• This model’s air filter is equipped with a disposable oil-coated paper element, which must not be cleaned with compressed air to avoid damaging it.
• The air filter element needs to be replaced more frequently when riding in unusually wet or dusty areas.
 V-belt case air filter
• The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
 V-belt
• The V-belt should be checked at the initial 8000 km (5000 mi) and every 4000 km (2500 mi) thereafter. Replace the
V-belt if any damage or excessive wear is found. The V-belt needs to be replaced every 25000 km (15500 mi) even
if there is not wear or damage.
 Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinders and calipers, and change the brake
fluid.
• Replace the brake hoses every four years and if cracked or damaged.
 Fuel system service
• Use only unleaded gasoline. The use of leaded gasoline will cause severe damage to internal engine parts, such as
the valves and piston rings, as well as to the exhaust system.
• Replace the fuel filler cover every two years or if cracked or damaged.
• Check the fuel filter for clogging or damage every 12000 km (7500 mi).
 Battery service
• Check the condition and service the battery every 3 months.
• Recharge the battery immediately if the voltage is less than 12.4 V.
• If the battery tends to discharge, replace it immediately.
9-6
9
UBF6EYE0.book Page 7 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
EAU18773
Removing and installing panels
The panels shown need to be removed
to perform some of the maintenance
jobs described in this chapter. Refer to
this section each time a panel needs to
be removed and installed.
2
3
1
2
1. Panel A
2. Screw
3. Quick fastener screw
1
2. Extend the right passenger footrest, and then pull the panel outward.
2
1. Panel A
2. Panel B
9
EAU77170
To install the panel
1. Place the panel in the original position, and then install the screws
and quick fastener screw.
Panel A
To remove the panel
1. Remove the screws and quick fastener screw.
9-7
2. Retract the right passenger footrest to its original position.
Panel B
To remove the panel
1. Remove panel A.
2. Remove the right floorboard mat
by pulling it up.
3. Remove the screws and bolts,
and then pull the panel outward.
UBF6EYE0.book Page 8 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
2. Place the right floorboard mat in
the original position and push it
downward to secure it.
3. Install panel A.
1
1. Floorboard mat
To install the panel
1. Place the panel in the original position, and then install the screws
and bolts.
EAUT2075
Checking the spark plug
The spark plug is an important engine
component, which is easy to check.
Since heat and deposits will cause any
spark plug to slowly erode, the spark
plug should be removed and checked
in accordance with the periodic maintenance and lubrication chart. In addition, the condition of the spark plug
can reveal the condition of the engine.
To remove the spark plug
1. Remove panel A. (See page 9-7.)
2. Remove the spark plug cap.
3
9
1
2
1
1. Spark plug cap
1. Panel B
2. Screw
3. Bolt
3. Remove the spark plug as shown,
with a spark plug wrench available
at a Yamaha dealer.
9-8
UBF6EYE0.book Page 9 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
1
2. Check the spark plug for electrode
erosion and excessive carbon or
other deposits, and replace it if
necessary.
Specified spark plug:
NGK/CPR8EA9
1. Spark plug wrench
3. Measure the spark plug gap with a
wire thickness gauge and, if necessary, adjust the gap to specification.
To check the spark plug
1. Check that the porcelain insulator
around the center electrode of the
spark plug is a medium-to-light
tan (the ideal color when the vehicle is ridden normally).
9
TIP
If the spark plug shows a distinctly different color, the engine could be operating improperly. Do not attempt to
diagnose such problems yourself. Instead, have a Yamaha dealer check
the vehicle.
To install the spark plug
1. Clean the surface of the spark
plug gasket and its mating surface, and then wipe off any grime
from the spark plug threads.
2. Install the spark plug with the
spark plug wrench, and then tighten it to the specified torque.
Tightening torque:
Spark plug:
13 N·m (1.3 kgf·m, 9.4 lb·ft)
TIP
If a torque wrench is not available
when installing a spark plug, a good
estimate of the correct torque is 1/4–
1/2 turn past finger tight. However, the
spark plug should be tightened to the
specified torque as soon as possible.
3. Install the spark plug cap.
1. Spark plug gap
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
9-9
UBF6EYE0.book Page 10 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
EAU62845
Engine oil and oil strainer
2
1
1. Spark plug cap
2. Spark plug lead
4. Install the panel.
The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil strainer
cleaned at the intervals specified in the
periodic maintenance and lubrication
chart.
To check the engine oil level
1. Place the vehicle on the centerstand. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Wait a few minutes until the oil settles, remove the oil filler cap, wipe
the dipstick clean, insert it back
into the oil filler hole (without
screwing it in), and then remove it
again to check the oil level.
EWAU0031
WARNING
The muffler and muffler protector
become very hot during use. To
avoid possible burns, let the muffler
and protector cool before removing
the oil filler cap.
9-10
TIP
The engine oil should be between the
tip of the dipstick and maximum level
mark.
2
1
1.
2.
3.
4.
5.
3
4
5
Engine oil filler cap
O-ring
Engine oil dipstick
Maximum level mark
Tip of the engine oil dipstick
4. If the engine oil is at or below the
minimum level mark, add sufficient oil of the recommended type
to raise it to the correct level.
5. Insert the dipstick into the oil filler
hole, and then tighten the oil filler
cap.
9
UBF6EYE0.book Page 11 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
To change the engine oil and clean
the oil strainer
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Place an oil pan under the engine
to collect the used oil.
3. Remove the engine oil filler cap
and drain bolt B to drain the oil
from the crankcase. NOTICE:
When removing the engine oil
drain bolt, the O-ring, compression spring, and oil strainer will
fall out. Take care not to lose
these parts. [ECA11002]
9
3
2
4
5
6
1
1.
2.
3.
4.
5.
6.
Engine oil drain bolt A
Gasket
Oil strainer
Compression spring
O-ring
Engine oil drain bolt B
TIP
When only changing the engine oil, remove drain bolt A. When changing the
engine oil and cleaning the engine oil
strainer, remove drain bolt B also.
4. Clean the engine oil strainer with
solvent, and then check it for
damage and replace it if necessary.
9-11
5. Install the engine oil strainer, compression spring, engine oil drain
bolt with new O-ring, and then
tighten the drain bolt to the specified torque.
TIP
Make sure that the O-ring is properly
seated.
Tightening torque:
Engine oil drain bolt A:
20 N·m (2.0 kgf·m, 14 lb·ft)
Engine oil drain bolt B:
32 N·m (3.2 kgf·m, 23 lb·ft)
6. Refill with the specified amount of
the recommended engine oil, and
then install and tighten the oil filler
cap.
Recommended engine oil:
See page 11-1.
Oil quantity:
0.90 L (0.95 US qt, 0.79 Imp.qt)
TIP
Be sure to wipe off spilled oil on any
parts after the engine and exhaust system have cooled down.
UBF6EYE0.book Page 12 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
ECA11671
NOTICE
 Do not use oils with a diesel
specification of “CD” or oils of a
higher quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.
 Be sure no foreign material enters the crankcase.
7. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.
8. Turn the engine off, and then
check the oil level and correct it if
necessary.
EAU67820
Final transmission oil
The final transmission case must be
checked for oil leakage before each
ride. If any leakage is found, have a
Yamaha dealer check and repair your
motorcycle. In addition, the final transmission oil must be changed as follows
at the intervals specified in the periodic
maintenance and lubrication chart.
1. Start the engine and warm up the
final transmission oil by riding the
motorcycle for several minutes.
2. Stop the engine and then place
the motorcycle on the centerstand.
3. Place an oil pan under the final
transmission case to collect the
used oil.
4. Remove the final transmission oil
filler cap and its O-ring from the final transmission case.
1
2
1. Final transmission oil filler cap
2. O-ring
5. Remove the final transmission oil
drain bolt and its gasket to drain
the oil from the final transmission
case.
9
1
2
1. Final transmission oil drain bolt
2. Gasket
9-12
UBF6EYE0.book Page 13 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
6. Install the final transmission oil
drain bolt and its new gasket, and
then tighten the bolt to the specified torque.
Tightening torque:
Final transmission oil drain bolt:
20 N·m (2.0 kgf·m, 14 lb·ft)
EAU20071
Coolant
The coolant level should be checked
before each ride. In addition, the coolant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU67000
7. Refill with the specified amount of
the recommended final transmission oil. WARNING! Make sure
that no foreign material enters
the final transmission case.
Make sure that no oil gets on
the tire or wheel. [EWA11312]
9
Recommended final transmission
oil:
See page 11-1.
Oil quantity:
0.15 L (0.16 US qt, 0.13 Imp.qt)
8. Install the final transmission oil filler cap and its new O-ring, and
then tighten the oil filler cap.
9. Check the final transmission case
for oil leakage. If oil is leaking,
check for the cause.
To check the coolant level
1. Place the vehicle on the centerstand.
TIP
 The coolant level must be
checked on a cold engine since
the level varies with engine temperature.
 Make sure that the vehicle is positioned straight up when checking
the coolant level. A slight tilt to the
side can result in a false reading.
1
1. Coolant level check window
2. Maximum level mark
3. Minimum level mark
3. If the coolant is at or below the
minimum level mark, remove the
right floorboard mat by pulling it
up.
2. Check the coolant level through
the check window.
TIP
The coolant should be between the
minimum and maximum level marks.
9-13
2
3
1
1. Floorboard mat
UBF6EYE0.book Page 14 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
4. Remove the coolant reservoir cover.
be protected against frost and
corrosion. If water has been
added to the coolant, have a
Yamaha dealer check the antifreeze content of the coolant as
soon as possible, otherwise the
effectiveness of the coolant will
be reduced. [ECA10473]
EAU33032
Changing the coolant
The coolant must be changed at the intervals specified in the periodic maintenance and lubrication chart. Have a
Yamaha dealer change the coolant.
WARNING! Never attempt to remove
the radiator cap when the engine is
hot. [EWA10382]
1
1. Coolant reservoir cover
5. Remove the coolant reservoir cap,
add coolant to the maximum level
mark, and then install the reservoir
cap. WARNING! Remove only
the coolant reservoir cap. Never
attempt to remove the radiator
cap when the engine is hot.
[EWA15162] NOTICE: If coolant is not
available, use distilled water or
soft tap water instead. Do not
use hard water or salt water
since it is harmful to the engine.
If water has been used instead
of coolant, replace it with coolant as soon as possible, otherwise the cooling system will not
1
1. Coolant reservoir cap
Recommended coolant:
YAMAHA GENUINE COOLANT
Coolant reservoir capacity (up to
the maximum level mark):
0.13 L (0.14 US qt, 0.11 Imp.qt)
6. Install the coolant reservoir cover.
7. Place the right floorboard mat in
the original position and push it
downward to secure it.
9-14
9
UBF6EYE0.book Page 15 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
EAU67174
Air filter and V-belt case air filter elements
The air filter element should be replaced and the V-belt case air filter element should be cleaned at the
intervals specified in the periodic maintenance and lubrication chart. Service
the air filter elements more frequently if
you are riding in unusually wet or dusty
areas. The air filter check hose and Vbelt case air filter check hose must be
frequently checked and cleaned if necessary.
Cleaning the air filter check hose
1. Check the hose on the rear side of
the air filter case for accumulated
dirt or water.
2. If dirt or water is visible, remove
the hose from the clamp, clean it,
and then install it.
TIP
If dirt or water was found in the check
hose, be sure to check the air filter element for excessive dirt or damage and
replace it if necessary.
Replacing the air filter element
1. Place the vehicle on the centerstand.
2. Remove the air filter case cover by
removing the screws.
2
1
9
3. Pull the air filter element out.
1
1. Air filter element
4. Insert a new air filter element into
the air filter case. NOTICE: Make
sure that the air filter element is
properly seated in the air filter
case. The engine should never
be operated without the air filter
element installed, otherwise the
piston(s) and/or cylinder(s) may
become
excessively
worn.
[ECA10482]
ECA21220
1
1. Air filter check hose
NOTICE
2
1. Air filter case cover
2. Screw
9-15
 The air filter element must be
replaced at the intervals specified in the periodic maintenance
and lubrication chart.
UBF6EYE0.book Page 16 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
 The air filter element needs
more frequent replacement if
you are riding in unusually wet
or dusty areas.
 Do not clean the air filter element by blowing it with compressed air.
5. Install the air filter case cover by
installing the screws.
Cleaning the V-belt case check hose
TIP
If dirt or water was found in the check
hose, be sure to check the V-belt case
air filter element for excessive dirt or
damage and clean or replace it if necessary.
Cleaning the V-belt case air filter element
1. Place the vehicle on the centerstand.
2. Remove the screws, and then pull
the V-belt case air filter element
cover outward and away from the
V-belt case.
3. Pull the V-belt case air filter element out, and then clean it with
solvent. After cleaning, remove
the remaining solvent by squeezing the element. WARNING! Use
only a dedicated parts cleaning
solvent. To avoid the risk of fire
or explosion, do not use gasoline or solvents with a low flash
point. [EWA10432] NOTICE: To avoid
damaging the air filter element,
handle it gently and carefully,
and do not twist it. [ECA10522]
2
9
1
1
1. V-belt case check hose
1. Check the hose on the rear side of
the V-belt case for accumulated
dirt or water.
2. If dirt or water is visible, remove
the hose from the clamp, clean it,
and then install it.
1
1. V-belt case air filter element
2
1. V-belt case air filter element cover
2. Screw
9-16
UBF6EYE0.book Page 17 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
EAU21386
Checking the throttle grip free
play
Measure the throttle grip free play as
shown.
4. Apply oil of the recommended
type to the entire surface of the
sponge material, and then
squeeze the excess oil out.
9
TIP
 The air filter element should be
wet but not dripping.
 Check the air filter element for excessive dirt or damage and replace it if necessary.
Recommended oil:
Yamaha foam air filter oil or other
quality foam air filter oil
A
1
A
1. Throttle grip free play
Throttle grip free play:
3.0–5.0 mm (0.12–0.28 in)
Periodically check the throttle grip free
play and, if necessary, have a Yamaha
dealer adjust it.
5. Insert the element into the V-belt
case.
6. Install the air filter element cover
by installing the screws.
9-17
EAU21402
Valve clearance
The valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
UBF6EYE0.book Page 18 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
EAU64401
Tires
Tires are the only contact between the
vehicle and the road. Safety in all conditions of riding depends on a relatively
small area of road contact. Therefore, it
is essential to maintain the tires in good
condition at all times and replace them
at the appropriate time with the specified tires.
Tire air pressure
The tire air pressure should be
checked and, if necessary, adjusted
before each ride.
EWA10504
WARNING
Operation of this vehicle with improper tire pressure may cause severe injury or death from loss of
control.
 The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).
 The tire air pressure must be
adjusted in accordance with the
riding speed and with the total
weight of rider, passenger, cargo, and accessories approved
for this model.
Tire air pressure (measured on cold
tires):
1 person:
Front:
200 kPa (2.00 kgf/cm2, 29 psi)
Rear:
225 kPa (2.25 kgf/cm2, 33 psi)
2 persons:
Front:
200 kPa (2.00 kgf/cm2, 29 psi)
Rear:
225 kPa (2.25 kgf/cm2, 33 psi)
Maximum load*:
153 kg (337 lb) (GDR155-A,
GDR155-R)
154 kg (340 lb) (GDR155)
* Total weight of rider, passenger, cargo and accessories
EWA10512
Tire inspection
1. Tire sidewall
2. Tire wear indicator
3. Tire tread depth
The tires must be checked before each
ride. If a tire tread shows crosswise
lines (minimum tread depth), if the tire
has a nail or glass fragments in it, or if
the sidewall is cracked, contact a
Yamaha dealer immediately and have
the tire replaced.
WARNING
Never overload your vehicle. Operation of an overloaded vehicle could
cause an accident.
9-18
Minimum tire tread depth (front and
rear):
1.0 mm (0.04 in)
9
UBF6EYE0.book Page 19 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
EWA10583
WARNING
 It is dangerous to ride with a
worn-out tire. When a tire tread
begins to show crosswise lines,
have a Yamaha dealer replace
the tire immediately.
 The replacement of all wheel
and brake-related parts, including the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowledge and experience to do so.
 Ride at moderate speeds after
changing a tire since the tire
surface must first be “broken
in” for it to develop its optimal
characteristics.
9
Tire information
This model is equipped with tubeless
tires and tire air valves.
Tires age, even if they have not been
used or have only been used occasionally. Cracking of the tread and sidewall
rubber, sometimes accompanied by
carcass deformation, is an evidence of
ageing. Old and aged tires shall be
checked by tire specialists to ascertain
their suitability for further use.
EWA10462
WARNING
The front and rear tires should be of
the same make and design, otherwise the handling characteristics of
the vehicle may be different, which
could lead to an accident.
After extensive tests, only the tires listed below have been approved for this
model by Yamaha.
Front tire:
Size:
110/80-14M/C 53P
Manufacturer/model:
IRC/SCT-005F
Rear tire:
Size:
140/70-14M/C 62P
Manufacturer/model:
IRC/SCT-005R
9-19
EAU21963
Cast wheels
To maximize the performance, durability, and safe operation of your vehicle,
note the following points regarding the
specified wheels.
 The wheel rims should be
checked for cracks, bends, warpage or other damage before each
ride. If any damage is found, have
a Yamaha dealer replace the
wheel. Do not attempt even the
smallest repair to the wheel. A deformed or cracked wheel must be
replaced.
 The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in
poor performance, adverse handling characteristics, and a shortened tire life.
UBF6EYE0.book Page 20 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
EAU49351
Checking the front brake lever
free play
braking performance, which may result in loss of control and an accident.
EAU22172
Adjusting the rear brake lever
free play
Measure the rear brake lever free play
as shown.
1
1
A
A
1. No brake lever free play
There should be no free play at the
brake lever end. If there is free play,
have a Yamaha dealer inspect the
brake system.
1. Rear brake lever free play
Rear brake lever free play:
10.0–20.0 mm (0.39–0.79 in)
EWA14212
WARNING
Periodically check the brake lever free
play and, if necessary, adjust it as follows.
To increase the brake lever free play,
turn the adjusting nut at the brake shoe
plate in direction (a). To decrease the
brake lever free play, turn the adjusting
nut in direction (b).
A soft or spongy feeling in the brake
lever can indicate the presence of
air in the hydraulic system. If there is
air in the hydraulic system, have a
Yamaha dealer bleed the system before operating the vehicle. Air in the
hydraulic system will diminish the
9-20
9
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Periodic maintenance and adjustment
Checking the front brake pads
and rear brake shoes
indicator grooves have almost disappeared, have a Yamaha dealer replace
the brake pads as a set.
The front brake pads and the rear
brake shoes must be checked for wear
at the intervals specified in the periodic
maintenance and lubrication chart.
Rear brake shoes
EAU22382
(a)
1
EAU22541
(b)
EAU22432
Front brake pads
1. Rear brake lever free play adjusting nut
1
2
EWA10651
WARNING
If proper adjustment cannot be obtained as described, have a Yamaha
dealer make this adjustment.
1. Brake shoe wear indicator
2. Brake shoe wear limit line
1. Brake pad wear indicator groove
9
Each front brake pad is provided with
wear indicator grooves, which allow
you to check the brake pad wear without having to disassemble the brake.
To check the brake pad wear, check
the wear indicator grooves. If a brake
pad has worn to the point that the wear
9-21
The rear brake is provided with a wear
indicator, which allows you to check
the brake shoe wear without having to
disassemble the brake. To check the
brake shoe wear, check the position of
the wear indicator while applying the
brake. If a brake shoe has worn to the
point that the wear indicator reaches
the wear limit line, have a Yamaha
dealer replace the brake shoes as a
set.
UBF6EYE0.book Page 22 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
EAU77930
Checking the brake fluid level
Before starting off, confirm that the
brake fluid is above the minimum level
mark. (Position the handlebars so the
brake fluid in the reservoir is level to the
ground.) Replenish the brake fluid if
necessary.
1
1. Minimum level mark
Specified brake fluid:
YAMAHA GENUINE BRAKE FLUID
DOT 4
 Insufficient brake fluid may allow air to enter the brake system,
reducing
braking
performance.
 Do not let water enter the brake
fluid reservoir when refilling.
Water will significantly lower the
boiling point of the fluid and
may result in vapor lock.
 To
prevent
contamination,
clean the reservoir and filler cap
before removing. Use only fresh
brake fluid from a sealed container.
 Use only the specified brake fluid. Use of a different brake fluid
may result in a harmful chemical
reaction, may cause the rubber
seals to deteriorate or cause internal rusting of the brake system.
ECA17641
EWA18870
WARNING
Improper maintenance can result in
loss of braking ability. Observe
these precautions:
NOTICE
Brake fluid may damage painted
surfaces or plastic parts. Always
clean up spilled fluid immediately.
9-22
As the brake pads wear, it is normal for
the brake fluid level to gradually go
down. A low brake fluid level may indicate worn brake pads or brake system
leakage. Therefore, be sure to check
the brake pads for wear and the brake
system for leakage. If the brake fluid
level goes down suddenly, have a
Yamaha dealer check the vehicle before further operation.
9
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Periodic maintenance and adjustment
EAU22724
EAUU0311
Changing the brake fluid
Checking the V-belt
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the periodic maintenance and lubrication chart. In addition, have the oil seals
of the brake master cylinder and caliper as well as the brake hose replaced
at the intervals listed below or whenever they are damaged or leaking.
 Oil seals: Replace every two
years.
 Brake hose: Replace every four
years.
The V-belt must be checked and replaced by a Yamaha dealer at the intervals specified in the periodic
maintenance and lubrication chart.
EAU23098
Checking and lubricating the
cables
The operation of all control cables and
the condition of the cables should be
checked before each ride, and the cables and cable ends should be lubricated if necessary. If a cable is
damaged or does not move smoothly,
have a Yamaha dealer check or replace it. WARNING! Damage to the
outer housing of cables may result
in internal rusting and cause interference with cable movement. Replace damaged cables as soon as
possible to prevent unsafe conditions. [EWA10712]
Recommended lubricant:
Yamaha cable lubricant or other
suitable cable lubricant
9
9-23
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Periodic maintenance and adjustment
EAU49921
EAU43643
Checking and lubricating the
throttle grip and cable
Lubricating the front and rear
brake levers
The operation of the throttle grip
should be checked before each ride. In
addition, the cable should be lubricated by a Yamaha dealer at the intervals
specified in the periodic maintenance
chart.
The pivoting points of the front and rear
brake levers must be lubricated at the
intervals specified in the periodic maintenance and lubrication chart.
Recommended lubricants:
Front brake lever:
Silicone grease
Rear brake lever:
Lithium-soap-based grease
Front brake lever
Rear brake lever
9
9-24
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Periodic maintenance and adjustment
EAU23215
Checking and lubricating the
centerstand and sidestand
1
EAU23273
Recommended lubricant:
Lithium-soap-based grease
The condition and operation of the
front fork must be checked as follows
at the intervals specified in the periodic
maintenance and lubrication chart.
To check the condition
Check the inner tubes for scratches,
damage and excessive oil leakage.
2
To check the operation
1. Place the vehicle on a level surface and hold it in an upright position. WARNING! To avoid injury,
securely support the vehicle so
there is no danger of it falling
over. [EWA10752]
2. While applying the front brake,
push down hard on the handlebars several times to check if the
front fork compresses and rebounds smoothly.
1. Sidestand
2. Centerstand
The operation of the centerstand and
sidestand should be checked before
each ride, and the pivots and metal-tometal contact surfaces should be lubricated if necessary.
9
Checking the front fork
EWA10742
WARNING
If the centerstand or sidestand does
not move up and down smoothly,
have a Yamaha dealer check or repair it. Otherwise, the centerstand or
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control.
9-25
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Periodic maintenance and adjustment
EAU45512
ECA10591
NOTICE
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or repair it.
EAU23292
Checking the steering
Checking the wheel bearings
Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as follows at the intervals specified in the
periodic maintenance and lubrication
chart.
1. Place the vehicle on the centerstand. WARNING! To avoid injury, securely support the vehicle
so there is no danger of it falling
over. [EWA10752]
2. Hold the lower ends of the front
fork legs and try to move them forward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrication chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer
check the wheel bearings.
9
9-26
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Periodic maintenance and adjustment
EAU50292
Battery
1
2
3
1. Battery
2. Positive battery lead (red)
3. Negative battery lead (black)
9
The battery is located under the seat.
(See page 6-15.)
This model is equipped with a VRLA
(Valve Regulated Lead Acid) battery.
There is no need to check the electrolyte or to add distilled water. However,
the battery lead connections need to
be checked and, if necessary, tightened.
EWA10761
burns. Avoid any contact with
skin, eyes or clothing and always shield your eyes when
working near batteries. In case
of contact, administer the following FIRST AID.
• EXTERNAL: Flush with plenty
of water.
• INTERNAL: Drink large quantities of water or milk and immediately call a physician.
• EYES: Flush with water for 15
minutes and seek prompt
medical attention.
 Batteries produce explosive hydrogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and provide sufficient ventilation when
charging it in an enclosed
space.
 KEEP THIS AND ALL BATTERIES OUT OF THE REACH OF
CHILDREN.
WARNING
 Electrolyte is poisonous and
dangerous since it contains sulfuric acid, which causes severe
To charge the battery
Have a Yamaha dealer charge the battery as soon as possible if it seems to
have discharged. Keep in mind that the
9-27
battery tends to discharge more quickly if the vehicle is equipped with optional electrical accessories.
ECA16522
NOTICE
To charge a VRLA (Valve Regulated
Lead Acid) battery, a special (constant-voltage) battery charger is required. Using a conventional battery
charger will damage the battery.
To store the battery
1. If the vehicle will not be used for
more than one month, remove the
battery, fully charge it, and then
place it in a cool, dry place.
NOTICE: When removing the
battery, be sure to turn the main
switch off, then disconnect the
negative lead before disconnecting the positive lead. [ECA16304]
2. If the battery will be stored for
more than two months, check it at
least once a month and fully
charge it if necessary.
3. Fully charge the battery before installation. NOTICE: When installing the battery, be sure to turn
the main switch off, then con-
UBF6EYE0.book Page 28 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
nect the positive lead before
connecting the negative lead.
[ECA16842]
4. After installation, make sure that
the battery leads are properly connected to the battery terminals.
EAU66795
Replacing the fuses
(GDR155/GDR155-R)
The fuse boxes, which contain the fuses for the individual circuits, are located under the seat. (See page 6-15.)
1
3
4
5
6
7
8
(GDR155/GDR155-R)
ECA16531
1
NOTICE
Always keep the battery charged.
Storing a discharged battery can
cause permanent battery damage.
1.
2.
3.
4.
5.
6.
7.
8.
1. Fuse box
(GDR155-A)
2
Main fuse
Spare fuse
Fuel injection system fuse
Backup fuse
Ignition fuse
Headlight fuse
Signaling system fuse
Terminal fuse 1 (for auxiliary DC jack)
1
9
1. Fuse box
9-28
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Periodic maintenance and adjustment
(GDR155-A)
2
1
2
3
4
7
8 65
9
11 10
12
1
9
1. Main fuse
2. Spare fuse
3. Fuel injection system fuse
4. Backup fuse
5. Ignition fuse
6. Headlight fuse
7. Signaling system fuse
8. ABS solenoid fuse
9. ABS motor fuse
10.ABS control unit fuse
11.Smart key system fuse
12.Terminal fuse 1 (for auxiliary DC jack)
2
1. Battery cover
2. Screw
4. Remove the blown fuse, and then
install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a higher amperage
rating than recommended to
avoid causing extensive damage to the electrical system and
possibly a fire. [EWA15132]
Specified fuses:
Main fuse:
30.0 A
Terminal fuse 1:
2.0 A
Headlight fuse:
7.5 A
Signaling system fuse:
7.5 A
Ignition fuse:
7.5 A
Smart key system fuse:
2.0 A (GDR155-A)
ABS motor fuse:
10.0 A (GDR155-A)
Fuel injection system fuse:
7.5 A
ABS solenoid fuse:
7.5 A (GDR155-A)
ABS control unit fuse:
2.0 A (GDR155-A)
Backup fuse:
7.5 A
5. Turn the main switch on, and then
turn on the electrical circuit in
question to check if the device operates.
If a fuse is blown, replace it as follows.
1. Turn off the electrical circuit in
question, and then turn off the
main switch.
2. Open the seat. (See page 6-15.)
3. Remove the battery cover by removing the screws.
9-29
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Periodic maintenance and adjustment
EAU62850
TIP
If the fuse immediately blows again,
have a Yamaha dealer check the electrical system.
6. Install the battery cover by installing the screws.
7. Close the seat.
Headlight
This model is equipped with an LEDtype headlight.
If a headlight does not come on, have
a Yamaha dealer check its electrical
circuit.
ECA16581
NOTICE
Do not affix any type of tinted film or
stickers to the headlight lens.
EAUV0700
Replacing an auxiliary light
bulb
This model is equipped with two auxiliary lights. If an auxiliary light bulb
burns out, replace it as follows.
1. Place the vehicle on the centerstand.
2. Remove the auxiliary light bulb
socket (together with the bulb) by
turning the socket counterclockwise.
1
9
1. Auxiliary light bulb socket
3. Remove the burnt-out bulb by
pulling it out.
9-30
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Periodic maintenance and adjustment
EAU24182
Tail/brake light
This model is equipped with an LEDtype tail/brake light.
If the tail/brake light does not come on,
have a Yamaha dealer check it.
EAU43054
Replacing a front turn signal
light bulb
1. Place the vehicle on the centerstand.
2. Remove the turn signal light bulb
socket (together with the bulb) by
turning it counterclockwise.
1
1. Auxiliary light bulb
4. Insert a new bulb into the socket.
5. Install the socket (together with
the bulb) by turning it clockwise.
1
1. Turn signal light bulb socket
3. Remove the burnt-out bulb by
pulling it out.
9
9-31
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Periodic maintenance and adjustment
EAUU1121
Replacing a rear turn signal
light bulb
1
1. Remove the rear turn signal lens
by removing the screw.
1
3. Insert a new bulb into the socket
by pushing it in.
ECAU0081
NOTICE
If a turn signal light bulb of different
wattage than recommended is used,
the turn signal light flashing may be
affected.
4. Install the lens by installing the
screw.NOTICE: Do not overtighten the screw, otherwise the
lens may break. [ECA11192]
1. Turn signal light bulb
4. Insert a new bulb into the socket.
5. Install the socket (together with
the bulb) by turning it clockwise.
1. Screw
2. Remove the burnt-out bulb by
pulling it out.
1
1. Turn signal light bulb
9-32
9
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Periodic maintenance and adjustment
EAUM3510
EAU60701
Replacing the license plate
light bulb
Troubleshooting
1
1. Remove the license plate light unit
by removing the screw.
1
1. Screw
2. Remove the license plate light
bulb socket (together with the
bulb) by pulling it out.
1. License plate light bulb
3. Remove the burnt-out bulb by
pulling it out.
4. Insert a new bulb into the socket.
5. Install the socket (together with
the bulb) by pushing it in.
6. Install the license plate light unit by
installing the screw.
9
Although Yamaha vehicles receive a
thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition systems,
for example, can cause poor starting
and loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems yourself. However, should your vehicle require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the vehicle properly.
Use only genuine Yamaha replacement parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
EWA15142
WARNING
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the area, including pilot lights from water
9-33
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Periodic maintenance and adjustment
heaters or furnaces. Gasoline or
gasoline vapors can ignite or explode, causing severe injury or property damage.
EAU76550
Smart key system troubleshooting
(GDR155-A)
Please check the following items when
the smart key system does not work.
 Is the smart key turned on? (See
page 4-5.)
 Is the smart key battery discharged? (See page 4-6.)
 Is the smart key battery installed
correctly? (See page 4-6.)
 Is the smart key being used in a location with strong radio waves or
other electromagnetic noise? (See
page 4-1.)
 Are you using the smart key that is
registered to the vehicle?
 Is the vehicle battery discharged?
When the vehicle battery is discharged, the smart key system will
not operate. Please have the vehicle battery charged or replaced.
(See page 9-27.)
If the smart key system does not work
after checking the above items, have a
Yamaha dealer check the smart key
system.
TIP
See “Emergency mode” on page 9-38
for information on starting the engine
without the smart key.
EAU76843
Stop and Start System troubleshooting (GDR155-A)
If a problem occurs, check the following before taking the vehicle to a
Yamaha dealer.
The Stop and Start System indicator
light does not come on.
1. Is the main switch turned on?
2. Is the Stop and Start System
switch set to “ A ”?
3. Was the engine warmed up sufficiently after starting?
4. After the engine was warmed up,
was the engine left idling for a certain period of time?
5. Did the vehicle travel at a speed of
10 km/h or higher?
9-34
Even if the preceding conditions are
met, the Stop and Start System may
not activate in order to preserve battery power. In this case, continue to
drive the vehicle.
In addition, the Stop and Start System
indicator light does not come on if the
engine trouble warning light is on.
If the Stop and Start System indicator
light still does not come on after you
checked the preceding conditions,
have a Yamaha dealer check the vehicle as soon as possible.
The Stop and Start System indicator
light comes on, but the engine does
not stop automatically.
1. Was the vehicle stopped completely?
The engine may not stop automatically until the vehicle is stopped
for a certain period of time. Try
bringing the vehicle to a complete
stop.
2. Is the throttle grip turned?
The engine does not stop automatically if the throttle grip is not in
the fully closed position.
9
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Periodic maintenance and adjustment
Turn the throttle grip to the fully
closed position.
If the engine still does not stop automatically after you checked the preceding conditions, have a Yamaha
dealer check the vehicle as soon as
possible.
9
If the engine is left stopped by the
Stop and Start System for a long
period of time, the battery could
become discharged.
If the engine still does not restart after
you checked the preceding conditions,
have a Yamaha dealer check the vehicle as soon as possible.
After the engine was stopped by the
Stop and Start System, the engine
does not restart even if the throttle
grip is turned.
1. Is the Stop and Start System
switch set to “ A ”?
If the Stop and Start System
switch is set to “ A ” while the Stop
and Start System is activated, the
Stop and Start System will be
turned off.
2. Was the sidestand operated?
When the sidestand is lowered,
the Stop and Start System is deactivated.
3. Was the engine left stopped by
the Stop and Start System for a
long period of time?
9-35
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Periodic maintenance and adjustment
EAU42706
Troubleshooting charts
Starting problems or poor engine performance
1. Fuel
There is enough fuel.
Check the battery.
There is no fuel.
Supply fuel.
Check the fuel level in
the fuel tank.
2. Battery
The engine does not start.
Check the battery.
The engine turns over
quickly.
The battery is good.
The engine turns over
slowly.
Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
Operate the electric starter.
3. Ignition
The engine does not start.
Check the ignition.
Wet
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Operate the electric starter.
Dry
Have a Yamaha dealer check the vehicle.
The engine does not start.
Check the compression.
Remove the spark plug
and check the electrodes.
4. Compression
There is compression.
The engine does not start.
Have a Yamaha dealer check the vehicle.
There is no compression.
Have a Yamaha dealer check the vehicle.
Operate the electric starter.
9-36
9
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Periodic maintenance and adjustment
Engine overheating
EWAT1041
WARNING
 Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
 Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the
detent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the cap
while turning it counterclockwise, and then remove the cap.
The coolant level is low.
Check the cooling system
for leakage.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.
There is
leakage.
There is
no leakage.
Have a Yamaha dealer check
and repair the cooling system.
Add coolant. (See TIP.)
Start the engine. If the engine overheats again, have a
Yamaha dealer check and repair the cooling system.
9
TIP
If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolant as soon as possible.
9-37
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Periodic maintenance and adjustment
EAU76560
Emergency mode (GDR155-A)
When the smart key is lost or damaged, or its battery has discharged, the
vehicle can still be turned on and the
engine started. You will need the smart
key system identification number. (See
page 4-3.)
1
To operate the vehicle in emergency
mode
1. Stop the vehicle in a safe place
and turn the main switch to “OFF”.
2. Push the main switch knob for 5
seconds until the smart key system indicator light flashes once,
then release it. Repeat two more
times. The smart key system indicator light will come on for three
seconds to indicate the transition
to emergency mode.
1. Smart key system indicator light “
”
3. After the smart key system indicator light goes off, input the identification number as follows.
2
4. Inputting the identification number
is done by counting the number of
flashes of the smart key system indicator light.
For example, if the identification
number is 123456:
Push and hold the knob.
↓
The smart key system indicator
light will start to flash.
↓
1
868588
868588
1. Identification number card
2. Identification number
9-38
Release the knob after the smart
key system indicator light flashes
once.
↓
The first digit of the identification
number has been set as “1”.
↓
Push and hold the knob again.
↓
9
UBF6EYE0.book Page 39 Friday, July 14, 2017 3:39 PM
Periodic maintenance and adjustment
Release the knob after the smart
key system indicator light flashes
twice.
↓
The second digit has been set as
“2”.
↓
Repeat the above procedure until
all digits of the identification number have been set. The smart key
system indicator light will flash for
10 seconds if the correct identification number was entered.
9
TIP
When one of the following situations
applies, emergency mode will be terminated and the smart key system indicator light will flash quickly for 3
seconds. In this case, start over again
from step 2.
 When there are no knob operations for 10 seconds during the
identification number input process.
 When the smart key system indicator light is allowed to flash nine
or more times.
 The identification number is not
entered correctly.
5. While the smart key system indicator light is on, push the knob
once more to complete emergency mode access. The smart key
indicator light will go off and then
come back on for approximately 4
seconds.
6. While the smart key system indicator light is on, turn the main
switch to “ON”. The vehicle can
now be operated normally.
9-39
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Scooter care and storage
EAU37834
Matte color caution
EAUV0362
Care
ECA15193
NOTICE
Some models are equipped with
matte colored finished parts. Be
sure to consult a Yamaha dealer for
advice on what products to use before cleaning the vehicle. Using a
brush, harsh chemical products or
cleaning compounds when cleaning
these parts will scratch or damage
their surface. Wax also should not
be applied to any matte colored finished parts.
While the open design of a scooter reveals the attractiveness of the technology, it also makes it more vulnerable.
Rust and corrosion can develop even if
high-quality components are used. A
rusty exhaust pipe may go unnoticed
on a car, however, it detracts from the
overall appearance of a scooter. Frequent and proper care does not only
comply with the terms of the warranty,
but it will also keep your scooter looking good, extend its life and optimize
its performance.
Before cleaning
1. Cover the muffler outlet with a
plastic bag after the engine has
cooled down.
2. Make sure that all caps and covers as well as all electrical couplers and connectors, including
the spark plug cap, are tightly installed.
3. Remove extremely stubborn dirt,
like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such prod10-1
ucts onto seals, gaskets and
wheel axles. Always rinse the dirt
and degreaser off with water.
Cleaning
ECA10784
NOTICE
 Avoid using strong acidic wheel
cleaners, especially on spoked
wheels. If such products are
used on hard-to-remove dirt, do
not leave the cleaner on the affected area any longer than instructed. Also, thoroughly rinse
the area off with water, immediately dry it, and then apply a corrosion protection spray.
 Improper cleaning can damage
plastic parts (such as cowlings,
panels, windshields, headlight
lenses, meter lenses, etc.) and
the mufflers. Use only a soft,
clean cloth or sponge with water to clean plastic. However, if
the plastic parts cannot be thoroughly cleaned with water, diluted mild detergent with water
may be used. Be sure to rinse
10
UBF6EYE0.book Page 2 Friday, July 14, 2017 3:39 PM
Scooter care and storage
10
off any detergent residue using
plenty of water, as it is harmful
to plastic parts.
 Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust removers or inhibitors, brake fluid,
antifreeze or electrolyte.
 Do not use high-pressure washers or steam-jet cleaners since
they cause water seepage and
deterioration in the following areas: seals (of wheel and swingarm bearings, fork and brakes),
electric components (couplers,
connectors,
instruments,
switches and lights), breather
hoses and vents.
 For scooters equipped with a
windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or
scratching. Some cleaning
compounds for plastic may
leave scratches on the wind-
shield. Test the product on a
small hidden part of the windshield to make sure that it does
not leave any marks. If the windshield is scratched, use a quality
plastic polishing compound after washing.
After normal use
Remove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt
and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.
After riding in the rain or near the sea
Since sea salt is extremely corrosive
carry out the following steps after each
ride in the rain or near the sea.
1. Clean the scooter with cold water
and a mild detergent after the engine has cooled down. NOTICE:
Do not use warm water since it
increases the corrosive action
of the salt. [ECA10792]
10-2
2. Apply a corrosion protection spray
on all metal, including chromeand nickel-plated, surfaces to prevent corrosion.
After cleaning
1. Dry the scooter with a chamois or
an absorbing cloth.
2. Use a chrome polish to shine
chrome, aluminum and stainlesssteel parts, including the exhaust
system. (Even the thermally induced discoloring of stainlesssteel exhaust systems can be removed through polishing.)
3. To prevent corrosion, it is recommended to apply a corrosion protection spray on all metal,
including chrome- and nickel-plated, surfaces.
4. Use spray oil as a universal cleaner to remove any remaining dirt.
5. Touch up minor paint damage
caused by stones, etc.
6. Wax all painted surfaces.
7. Let the scooter dry completely before storing or covering it.
UBF6EYE0.book Page 3 Friday, July 14, 2017 3:39 PM
Scooter care and storage
EWA10943
WARNING
Contaminants on the brakes or tires
can cause loss of control.
 Make sure that there is no oil or
wax on the brakes or tires. If
necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or
acetone, and wash the tires with
warm water and a mild detergent.
 Before operating the scooter
test its braking performance
and cornering behavior.
EAU36564
TIP
 Consult a Yamaha dealer for advice on what products to use.
 Washing, rainy weather or humid
climates can cause the headlight
lens to fog. Turning the headlight
on for a short period of time will
help remove the moisture from the
lens.
Storage
Short-term
Always store your scooter in a cool, dry
place and, if necessary, protect it
against dust with a porous cover. Be
sure the engine and the exhaust system are cool before covering the
scooter.
ECA10821
NOTICE
 Storing the scooter in a poorly
ventilated room or covering it
with a tarp, while it is still wet,
will allow water and humidity to
seep in and cause rust.
 To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong chemicals are stored.
ECAU0022
NOTICE
 Apply spray oil and wax sparingly and make sure to wipe off
any excess.
 Never apply oil or wax to any
rubber parts, plastic parts or
headlight, taillight and meter
lenses, but treat them with a
suitable care product.
 Avoid using abrasive polishing
compounds as they will wear
away the paint.
10
Long-term
Before storing your scooter for several
months:
1. Follow all the instructions in the
“Care” section of this chapter.
10-3
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Scooter care and storage
10
2. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
3. Perform the following steps to
protect the cylinder, piston rings,
etc. from corrosion.
a. Remove the spark plug cap
and spark plug.
b. Pour a teaspoonful of engine
oil into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit sparking during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap. WARNING! To
prevent damage or injury
from sparking, make sure to
ground the spark plug electrodes while turning the engine over. [EWA10952]
4. Lubricate all control cables and
the pivoting points of all levers and
pedals as well as of the sidestand/centerstand.
5. Check and, if necessary, correct
the tire air pressure, and then lift
the scooter so that both of its
wheels are off the ground. Alternatively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an excessively cold or warm place [less
than 0 °C (30 °F) or more than 30
°C (90 °F)]. For more information
on storing the battery, see page
9-27.
TIP
Make any necessary repairs before
storing the scooter.
10-4
UBF6EYE0.book Page 1 Friday, July 14, 2017 3:39 PM
Specifications
Dimensions:
Overall length:
1990 mm (78.3 in)
Overall width:
700 mm (27.6 in)
Overall height:
1125 mm (44.3 in)
Seat height:
790 mm (31.1 in)
Wheelbase:
1350 mm (53.1 in)
Ground clearance:
140 mm (5.51 in)
Minimum turning radius:
2.0 m (6.56 ft)
Weight:
Curb weight:
116 kg (256 lb) (GDR155)
117 kg (258 lb) (GDR155-R)
118 kg (260 lb) (GDR155-A)
Engine:
Combustion cycle:
4-stroke
Cooling system:
Liquid cooled
Valve train:
SOHC
Number of cylinders:
Single cylinder
Displacement:
155 cm3
Bore × stroke:
58.0 × 58.7 mm (2.28 × 2.31 in)
Compression ratio:
10.5 : 1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:
Recommended brand:
YAMALUBE
SAE viscosity grades:
10W-40
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA or MB
Engine oil quantity:
Oil change:
0.90 L (0.95 US qt, 0.79 Imp.qt)
Final transmission oil:
Type:
Motor oil SAE 10W-30 type SE or higher or
Gear oil SAE 85W GL-3
Quantity:
0.15 L (0.16 US qt, 0.13 Imp.qt)
Coolant quantity:
Coolant reservoir (up to the maximum level
mark):
0.13 L (0.14 US qt, 0.11 Imp.qt)
Radiator (including all routes):
0.46 L (0.49 US qt, 0.40 Imp.qt)
Air filter:
Air filter element:
Oil-coated paper element
Fuel:
Recommended fuel:
Regular unleaded gasoline (Gasohol [E10]
acceptable)
Fuel tank capacity:
4.6 L (1.2 US gal, 1.0 Imp.gal)
Fuel reserve amount:
0.8 L (0.21 US gal, 0.18 Imp.gal)
Fuel injection:
Throttle body:
ID mark:
B631 00
Spark plug(s):
Manufacturer/model:
NGK/CPR8EA9
Manufacturer/model:
DENSO/U24EPR-9
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Clutch:
Clutch type:
Dry, centrifugal, shoe
Drivetrain:
Primary reduction ratio:
1.000
Final drive:
Gear
Secondary reduction ratio:
10.769 (56/16 x 40/13)
Transmission type:
V-belt automatic
Chassis:
Frame type:
Underbone
11-1
11
UBF6EYE0.book Page 2 Friday, July 14, 2017 3:39 PM
Specifications
Caster angle:
26.5 °
Trail:
95 mm (3.7 in)
Front tire:
Type:
Tubeless
Size:
110/80-14M/C 53P
Manufacturer/model:
IRC/SCT-005F
Rear tire:
Type:
Tubeless
Size:
140/70-14M/C 62P
Manufacturer/model:
IRC/SCT-005R
Loading:
Maximum load:
153 kg (337 lb) (GDR155-A, GDR155-R)
154 kg (340 lb) (GDR155)
(Total weight of rider, passenger, cargo
and accessories)
Tire air pressure (measured on cold
tires):
11
1 person:
Front:
200 kPa (2.00 kgf/cm2, 29 psi)
Rear:
225 kPa (2.25 kgf/cm2, 33 psi)
2 persons:
Front:
200 kPa (2.00 kgf/cm2, 29 psi)
Rear:
225 kPa (2.25 kgf/cm2, 33 psi)
Front wheel:
Wheel type:
Cast wheel
Rim size:
14M/C x MT2.50
Rear wheel:
Wheel type:
Cast wheel
Rim size:
14M/C x MT3.50
Front brake:
Type:
Hydraulic single disc brake
Specified brake fluid:
YAMAHA GENUINE BRAKE FLUID (DOT 4)
Rear brake:
Type:
Mechanical leading trailing drum brake
Front suspension:
Type:
Telescopic fork
Spring:
Coil spring
Shock absorber:
Hydraulic damper
Wheel travel:
100 mm (3.9 in)
Rear suspension:
Type:
Unit swing
Spring:
Coil spring
11-2
Shock absorber:
Hydraulic damper
Wheel travel:
86 mm (3.4 in)
Electrical system:
System voltage:
12 V
Ignition system:
TCI
Battery:
Model:
YTZ7V
Voltage, capacity:
12 V, 6.0 Ah (10 HR)
Bulb wattage:
Headlight:
LED
Brake/tail light:
LED
Front turn signal light:
10.0 W
Rear turn signal light:
10.0 W
Auxiliary light:
5.0 W
License plate light:
5.0 W
Meter lighting:
LED
High beam indicator light:
LED
Turn signal indicator light:
LED
UBF6EYE0.book Page 3 Friday, July 14, 2017 3:39 PM
Specifications
Coolant temperature warning light:
LED
ABS warning light:
LED (GDR155-A)
Smart key system indicator light:
LED (GDR155-A)
Stop and Start System indicator light:
LED (GDR155-A)
Fuse(s):
Main fuse:
30.0 A
Terminal fuse 1:
2.0 A
Headlight fuse:
7.5 A
Signaling system fuse:
7.5 A
Ignition fuse:
7.5 A
Fuel injection system fuse:
7.5 A
ABS control unit fuse:
2.0 A (GDR155-A)
ABS motor fuse:
10.0 A (GDR155-A)
ABS solenoid fuse:
7.5 A (GDR155-A)
Backup fuse:
7.5 A
Smart key system fuse:
2.0 A (GDR155-A)
11
11-3
UBF6EYE0.book Page 1 Friday, July 14, 2017 3:39 PM
Consumer information
EAU26365
Identification numbers
EAU62971
Vehicle identification number
EAU26442
Engine serial number
Record the vehicle identification number and the engine serial number in the
spaces provided below for assistance
when ordering spare parts from a
Yamaha dealer or for reference in case
the vehicle is stolen.
1
1
VEHICLE IDENTIFICATION NUMBER:
ENGINE SERIAL NUMBER:
1. Vehicle identification number
1. Engine serial number
The vehicle identification number is
stamped into the frame under the passenger seat.
The engine serial number is stamped
into the crankcase.
TIP
The vehicle identification number is
used to identify your vehicle and may
be used to register it with the licensing
authority in your area.
12
12-1
UBF6EYE0.book Page 2 Friday, July 14, 2017 3:39 PM
Consumer information
EAU74701
Vehicle data recording
This model’s ECU stores certain vehicle data to assist in the diagnosis of
malfunctions and for research and development purposes. This data will be
uploaded only when a special Yamaha
diagnostic tool is attached to the vehicle, such as when maintenance checks
or service procedures are performed.
Although the sensors and recorded
data will vary by model, the main data
points are:
 Vehicle status and engine performance data
 Fuel-injection and emission-related data
Yamaha will not disclose this data to a
third party except:
 With the consent of the vehicle
owner
 Where obligated by law
 For use by Yamaha in litigation
 For general Yamaha-conducted
research purposes when the data
is not related to an individual vehicle nor owner
12
12-2
UBF6EYE0.book Page 1 Friday, July 14, 2017 3:39 PM
Index
13
A
ABS (for ABS models)...........................6-11
ABS warning light (for ABS models) .......6-4
Acceleration and deceleration ................8-3
Activating the Stop and Start System ....5-1
Air filter and V-belt case air filter
elements .............................................9-15
Auxiliary DC jack...................................6-20
Auxiliary light bulb, replacing................9-30
Engine trouble warning light................... 6-4
F
Final transmission oil ............................ 9-12
Front brake lever free play, checking ... 9-20
Front fork, checking ............................. 9-25
Fuel....................................................... 6-13
Fuel consumption, tips for reducing ...... 8-3
Fuel tank cap........................................ 6-12
Fuel tank cap lid opening and
closing................................................ 4-10
Fuel tank overflow hose ....................... 6-14
Fuses, replacing ................................... 9-28
B
Battery ..................................................9-27
Brake fluid, changing ............................9-23
Brake fluid level, checking ....................9-22
Brake lever, front ..................................6-11
Brake lever, rear....................................6-11
Brake levers, lubricating .......................9-24
Brake pads and shoes, checking .........9-21
Braking....................................................8-3
H
Handlebar switches.............................. 6-10
Headlight .............................................. 9-30
Helmet holders ..................................... 6-15
Helmets .................................................. 2-6
High beam indicator light ....................... 6-3
Horn switch .......................................... 6-10
C
Cables, checking and lubricating .........9-23
Care ......................................................10-1
Catalytic converter................................6-14
Centerstand and sidestand,
checking and lubricating ....................9-25
Coolant .................................................9-13
Coolant temperature warning light .........6-3
I
Identification numbers.......................... 12-1
Ignition circuit cut-off system............... 6-18
Indicator lights and warning lights ......... 6-3
K
Key, handling of smart and
mechanical keys................................... 4-3
Keyhole cover......................................... 6-2
D
Data recording, vehicle .........................12-2
Dimmer switch ......................................6-10
E
Emergency mode (GDR155-A) .............9-38
Engine break-in.......................................8-4
Engine oil and oil strainer......................9-10
Engine serial number ............................12-1
L
Labels, location ...................................... 1-1
License plate light bulb, replacing........ 9-33
M
Main switch ............................................ 4-7
Main switch/steering lock....................... 6-1
Maintenance and lubrication, periodic ... 9-3
13-1
Maintenance, emission control
system ..................................................9-2
Matte color, caution ..............................10-1
Multi-function meter unit.........................6-5
O
Operating range of the smart key
system ..................................................4-2
P
Panels, removing and installing ..............9-7
Parking ....................................................8-4
Part locations ..........................................3-1
Precautions when using the
Stop and Start System .........................5-3
R
Rear brake lever free play, adjusting ....9-20
Rear turn signal light bulb, replacing ....9-32
S
Safe-riding points....................................2-5
Safety information...................................2-1
Seat.......................................................6-15
Seat opening and closing .....................4-11
Sidestand ..............................................6-17
Smart key ................................................4-5
Smart key battery, replacing...................4-6
Smart key system ...................................4-1
Smart key system indicator light.............6-4
Smart key system, troubleshooting ......9-34
Spark plug, checking ..............................9-8
Specifications .......................................11-1
Starting off ..............................................8-2
Starting the engine..................................8-1
Start switch ...........................................6-10
Steering, checking ................................9-26
Stop and Start System............................5-1
UBF6EYE0.book Page 2 Friday, July 14, 2017 3:39 PM
Index
Stop and Start System indicator light .... 6-5
Stop and Start System operation........... 5-1
Stop and Start System switch.............. 6-10
Stop and Start System
troubleshooting .................................. 9-34
Storage ................................................. 10-3
Storage compartments......................... 6-16
13
T
Tail/brake light ...................................... 9-31
Throttle grip and cable,
checking and lubricating .................... 9-24
Throttle grip free play, checking........... 9-17
Tires ...................................................... 9-18
Tool kit.................................................... 9-1
Troubleshooting.................................... 9-33
Troubleshooting charts......................... 9-36
Turn signal indicator lights ..................... 6-3
Turn signal light bulb (front),
replacing............................................. 9-31
Turn signal switch................................. 6-10
V
Valve clearance .................................... 9-17
V-belt, checking.................................... 9-23
Vehicle identification number ............... 12-1
W
Wheel bearings, checking .................... 9-26
Wheels.................................................. 9-19
13-2
PRINTED IN THAILAND
2017.07 (E)
DIC183
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