Mortch International Ltd
B08 SERIES
User’s Manual
Mortch International Ltd
Preface
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Thank you very much for purchasing our scooters. And welcome to join the driver’s line of MORTCH motorcycle.
With its extraordinary advantages of excellent quality, smart appearance and shape of legerity, our product will surely
bring the utmost pleasure and convenience to your life.
This manual gives you information about the general structure, function, operation and maintenance methods of B08
SERIES. In order to enable your beloved motorcycle to render a best performance and a longer life, please read this
manual carefully, pay particular attention to the running-in part in it and follow all the operating instruction. It is of great
importance to make your riding safer and more comfortable. Experienced staffs in our sale agency and the maintenance
shop will also offer excellent service for you.
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Please take an initial examination of your motorcycle after the first 300km running in our designated maintenance
shop, and take regular examination in every 1000km thereafter.
All the direction, illustration and specification included in this manual are based on the latest product information.
Please be noted that they may be different from the actual status of the motorcycle if there is new revision on its
specification, and no further advice will be given.
This motorcycle was designed and manufactured which complied with e-mark, the safety standard of Europe Union.
The maximum speed is 45 km/h. Please do NOT change any parts without professional advice and use non-original
parts in case of avoiding danger to driver and the broken of traffic laws.
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CONTENTS
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Guidance
……………………………………………………………………………………………
1
……………………………………………………………………………………
3
Position of parts
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Controlling parts ………………………………………………………………………………………
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Fuel tank
……………………………………………………………………………………………
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Fuel and engine oil ……………………………………………………………………………………
4
6
6
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7
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8
Running-in ……………………………………………………………………………………………
9
Regular maintenance …………………………………………………………………………………
10
Tools …………………………………………………………………………………………………
16
Technical Parameters …………………………………………………………………………………
17
Electrical Circuit Chart …………………………………………………………………………………
19
Pre-riding inspection
Engine starting
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Starting pedal …………………………………………………………………………………………
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□Guidance
the following rules:
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Pre-riding inspection
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1.
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Please keep safety in your mind and observe the regulations of transportation while enjoying your riding. Pay attention to
Helmet
Do remember to wear helmet while riding.
3.
Being familiar with motorcycle operation
It is of great importance to ensure your safety getting familiar
with motorcycle operation.
4.
WARNING
It is dangerous to drive on the wet road.
Do not make an abrupt turning while
accelerating and keep proper distance
from other vehicles.
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Please read the details in the relevant chapter for your safety.
Speed limitation
Drive at proper speed in accordance with the road condition,
the weather and your driving skill.
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5.
Positions of the numbers
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The frame number and the engine number are for the purpose of
registering the motorcycle. When your motorcycle needs
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inspection, repair or other special service, the number will enable
frame number
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your number here:
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you to get good service from our sale agency. Please note down
□ The frame number:
□ The engine number:
2
engine number
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□ Position of parts
6 7 8
9
1011 12 13
14 15 16
17 18
19 20 21
22 23 24
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1 2 3 4 5
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BAOT IAN
1. brake disc
5. disk brake assy.
9. side stand
13. rear carrier
17. rear reflector
21. right switches assy.
2. front shock absorber
6. rear-view mirrors
10. main stand
14. rear turning light
18. rear brake lever
22. front brake lever
3. side reflector
7. front turning light
11. starting pedal
15. air cleaner
19. left switches assy.
23. taillight
3
4. head light
8. helmet hook
12. rear shock absorber
16. drum brake assy.
20. meters
24. muffler
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□ Controlling parts
1. Rear brake lever
Left turning light
Right turning light
C. Switch for high/low beam lights
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Hold it tightly and the rear brake works.
3. Meters and indicating lights
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B
C
D
E F
2. Switches on the left
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A
A. Indicates the speed in km/h and Mph
C
B. Indicates total distance the motorcycle has run
C. Left turning light indicator
B
D. High beam indicator
A
E. Right turning light indicator
A. Horn button
B. Turning signal switch
F. Fuel gauge
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4. Front brake lever
When the ignition switch is at ON position, hold the
brake and press the electric starting button and then the
engine starts.
Hold it tightly and the front brake works.
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6. Ignition switch
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5. Switches on the right
PUSH
---ON
---OFF
---LOCK
ON: Engine can be started and all the lights can be
operated. The key cannot be taken out.
OFF: The whole circuit is cut. Engine and lights cannot
be operated and the key can be taken out.
LOCK: Turn the steering handlebar fully to the left, press
the key and turn it to the position lock. Then the
key can be taken out.
A
B
A. Head light switch
B. Electric starting button
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□Fuel tank
□Fuel and engine oil
Usage of the fuel tank lock:
A. Gasoline
1. Turn the little cap on the fuel cap clockwise. Insert
the key and turn the key clockwise and take out the
fuel cap.
2. Align the lock tongue on fuel cap with the notch on
fuel tank, press the fuel cap and lock it.
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High quality fuel is essential to the engine.
Any sand in the fuel is absolutely prohibited.
90# or higher quality lead-free gasoline is preferred.
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B. Engine oil
SAE15w/40 SF
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20w/40-20w/50
15w/40-15w/50
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lock tongue
10w/30
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10w/40
notch
□Starting pedal
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open
-10
T
0
20
10
40
60
30
80
Starting pedal is for kicking start of the engine.
Warning
◆Turn off the engine when refilling the tank.
◆Turn off the cap slowly.
◆Don’t overfill the gasoline over the designated scale.
◆Do not add anything into the gasoline.
starting pedal
6
40C °
100 ° F
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□Pre-riding inspection
No.
Items
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Please check the following parts before you drive.
Inspection content
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Steering handlebar
1.Flexibility
2.No gap or loosing appearance
2
Brake system
3
Tires
1.Proper pressure
4
Fuel
Sufficient fuel
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Engine oil
Sufficient engine oil
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Lights
Workable
7
Horn
Workable
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Gear oil
With normal stock
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Throttle
1. Proper gap
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All the bolts and nuts
No loosing appearance.
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1.Travel of the front brake and the rear brake
2.No break on the cable
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3.Flexible function
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2.No crack or cutting
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2.Flexible function
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3.Proper control lever returning
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□Engine starting
1. Please check the volume of engine oil and gasoline
before starting. The main stand and the side stand
should be taken back while starting the engine.
2. Turn the ignition switch to the “ON” position.
3. Engine Starting
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Grip the brake lever and press the starting button and
then the engine will be started.
electric starting button
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PUSH
"ON" position
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grip the rear brake lever
Warning
◆ Grip the rear brake lever in case that the
motorcycle rushes forwards abruptly.
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Warning
◆ 5 seconds is the maximum limit for each starting
and10 seconds is the minimum interval.
◆ Stop pressing the starting button immediately
after the engine starts.
◆ Do not press the starting button while the engine
is running, or the start motor will be damaged.
◆ When using electric starting, please press the
rear brake lever in advance to get through the
circuit and start the motor.
◆ When using electric starting, don’t operate the
starting motor continually, or it may cause
damage to the starting motor and the battery.
◆ Warm up the engine after cold starting (about 3
minutes).
◆ After the engine started, the starting pedal
should be taken back to its original position.
Otherwise, it will affect the driver’s safety.
◆ Please don’t start the engine in unventilated
places, because the wasted gas with CO is
harmful to human being.
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Warning
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□Running in
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To keep your motorcycle running in a good condition,
please follow the below rules during the running-in
period.
Distance (km)
4. Kick Starting
Grip the brake lever, tread the starting pedal
heavily and then the engine will be started.
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Speed limitation (km/h)
0-300
25
300-1000
35
1000-----
≤45
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□Regular maintenance
Km
Month
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Interval
1000
1
3000
3
6000
6
12000
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Item
New motor
Battery
I
I
I
I
I
Engine oil strainer
C
C
Gasoline strainer
R
Carburetor
I
I
I
C
Air cleaner core
Clean it every 2000km and replace it when necessary
Spark plug
Clean it every 3000km and replace when necessary
Fuel throttle
A
A
A
A
Drive belt
I
I
Engine oil
R
R
Replace every 3000km
Brake system
I
I
I
I
I
Front fork and steering stem bearing
I
I
I
I
Suspension
I
I
I
I
Tires
I
I
I
I
I
Fastening nuts and bolts
I
F
F
F
Gear oil
R
Replace every 5000km / 5Month
Rear brake cam
C
NOTE: I=Inspect and clean、adjust、replace or lubricate when necessary, C=Clean, R=Replace, F=Fastened
Service more frequently when riding in dusty conditions.
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1. Battery
12V/5.7Ah battery
① When the voltage is less than 11.5V, please use
kick starting in stead of electric starting.
② Put the ignition switch on OFF position before
battery replacement.
③ Electrode identification: “+”— red line, “-”—green line.
④ Change a new battery every 4 years.
Warning
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◆ It has been fully adjusted to the highest
position when manufactured.
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3. Air cleaner
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2. Carburetor and idling speed adjustment
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②
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Keep the engine warmed up for 2-3 minutes.
Adjust the idling speed screw to set the engine at
speed of 1900 ± 100 rpm. The idling speed
adjusting screw is following:
1
idling speed adjusting screw
2
3
4
A: Remove 6 tightening screws of air cleaner cover.
Remove air cleaner cover.
B: Take out the sponge core.
CLEANING:
① Pour the non-inflammable detergent into a basin
and immerse the sponge core into the detergent.
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② Press the core to squeeze the detergent out of it by
palms. Never twist it in case that it is broken.
③ Immerse the core into engine oil.
④ Squeeze the excessive oil out but keep it lightly oil
immersed.
If it has been damaged, please replace a new one.
NOTE: Do not clean it with any oil or water.
5. Fuel
4. Spark plug
6. Engine oil
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Refill the recommended 90# or higher quality
lead-free gasoline when the indicating needle in the
fuel gauge points to the red area.
NOTE: Lead-free gasoline will extend the life of spark
plug and catalytic converter.
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◆Clean the carbon deposit on the spark plug with a
piece of hard wire or steel needle.
◆Adjust the gap to 0.6-0.7mm with a thickness gauge.
◆Use A7RC when replacement is needed.
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Replace the engine oil under the condition of the
engine is warm.
oil dipstick
oil plug for
displacement upper limit
oil dipstick
lower limit
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②The rear brake (drum brake)
Turn the adjusting nut to get a proper travel.
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① Remove the oil dipstick.
② Remove the oil plug for displacement to drain the
used oil.
③ Reinstall the oil plug for displacement, paying
attention to be tightened .
④ Refill 0.8 L recommended fresh engine oil.
⑤ Fasten all the nuts and screws.
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7. Brake system
a=10~20mm
adjusting nut
Normal free travel of the brake lever is about 10-20mm.
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Warning
◆ FREE TRAVEL means the distance between
the positions from free status to the
beginning performance of the brake.
◆ Pay attention to the sensitivity of the brake.
a
① The front brake (disk brake)
a=10~20mm
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◆Brake oil level
◆Grip the brake lever and check the wear and tear
indicator. If the indicator nearly touched the brake disc,
please ask the appointed maintainer to change the brake
blocks.
① It has been filled with the special brake oil before the
motorcycle leaves the factory. User should fill or replace
the qualified brake oil (such as No.DOT3 or DOT4 brake
oil) from the appointed maintenance station. Never
replace or mix other oil, otherwise it would damage the
brake system.
②If the brake oil is insufficient, it might be possible for
the air to come into the brake system and result in the
failure of the system.
③
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☆ Disk brake
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①wear and tear indicator ②brake disc ③brake blocks
◆Check the following items of brake system before
driving the motorcycle:
① Check if there is any leakage.
② Check if there is any leakage or crack on the oil
pressed hose.
③ The brake lever should be kept with a certain free
distance of 10~20mm and kept a certain re-grip
power.
④ Abrasion of the brake blocks.
Warning
◆ Brake oil is corrosive material. It would damage
and corrupt the painting of the part. It should be
cleanout if the oil splash on the part.
◆ If the oil sprayed on the skin or eyes, it should
be cleaning quickly with a lot of water.
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8. Tires
9. Starting motor
Insufficient tire pressure hastens wear of them and
affects the riding stability. Please check the tire pressure
and tread depth when applying regular maintenance.
①Tire pressure: front 250 KPa, rear 250 KPa.
②Tread depth: It is suggested to replace a new tire
when the tread depth is less than l mm.
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Check the fastening bolts and the carbon brush, and
replace them if necessary.
10. Fuse
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1mm
Warning
◆ The fuse can not be replaced by any iron
or aluminum wire.
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Fuse is linked with the outer line of the battery. When a
light or circuit fails suddenly, please check the fuse first.
Warning
◆ The standard tire is 120/70-12 56J for front
and 130/70-12 58J for rear tires. Another
type of tire may cause trouble.
◆ Tire inflation pressures and the general tire
condition are extremely important to the proper performance and safety of the vehicle.
11. Gear oil
Please use the recommended gear oil: SAE85W/90
Total capacity: 110ml
Replacing capacity: 100ml
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□Tools
How to change gear oil
Stand up the main stand.
Take off the oil plug for refill.
Take off the oil plug for draining, let off all the dirty
gear oil.
Tighten the oil plug for draining.
Refill fresh gear oil and tighten the oil plug for refill.
A full set of tools is offered for your daily use.
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the plug for draining
the plug for refill
After refilling, please make sure you have locked the oil
plugs and bolts.
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□Technical Parameters
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Size
Specifications
Items
Length
Width
Height
Wheel base
Unloaded weight
Mass weight
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1850mm
680mm
1150mm
1300mm
88kg±3kg
242kg
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Weight
45km/h
≥6°
A7RC
12V/5.7AH
10A
12V 35/35W
12V 10W
12V 10W
12V 21/5W
12V 5W
4L±0.5L
1L
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Circuit system
Max. Speed
Slope
Spark plug
Battery
Fuse
Headlight
Front turning lights
Rear turning lights
Brake light
Position lights
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Capacity
Volume of the fuel tank
Volume of the engine oil tank
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Specifications
139QMA
4 stroke
1
39mm×41.4 mm
49cm3
10.5±0.3:1
2.61 kW/8000r/min
3.56N·m/5500r/min
PZ18J
Sponge core
CDI
Electric/kicking start
Forced air-cooled
Pressure spray
Front: disk brake Rear: drum brake
Variable-pitch spring & hydraulic damping
shock absorber
Variable-pitch spring & hydraulic damping
shock absorber
120/70-12 56J for front tire
130/70-12 58J for rear tire
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Engine
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Items
Model
Type
Cylinder
Bore and stroke
Cylinder volume
Compression ratio
Max. Power
Max. Torque
Carburetor
Air cleaner
Ignition type
Starting mode
Cooling mode
Lubrication
Brake system
Front shock absorber
Suspension
Rear shock absorber
Tires
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