OUTBOARD MOTOR
OWNER’S MANUAL
F2.6BM
SUZHOU PARSUN POWER MACHINE CO., LTD.
Thank you for owning a PARSUN outboard motor.
Thank you for your trust in our company and products.
 “PARSUN” outboard motors are powerful, economic and safe with advanced technology
and processing technique.
 Please read this manual carefully before operating your outboard motor. A through
understanding of the manual will help you to know this product for proper operation,
maintenance and care. This will ensure that your outboard motor is operated well under
various conditions.
 “PARSUN” seeks continuous improvement in product quality. Therefore, while this manual
contains the most current product information available at the time of printing, there may
be minor discrepancies between your machine and this manual. If there is any question
concerning the manual, please consult your local PARSUN dealer.
 Data, illustrations or explanations in this Owner’s Manual do not constitute base for any
legal claim against our company.
SUZHOU PARSUN POWER MACHINE CO., LTD
Engine Identification Numbers
Outboard motor serial number
The outboard motor serial number is marked on the label. The label can be found on the bracket left
assembly or on the upper part of the bracket swivel.
Record your outboard motor serial number in the spaces provided to assist you in ordering spare parts
from your Parsun dealer, or for reference in case your outboard motor is stolen.
1
1. Outboard motor serial number location
Serial number as follows:
SN
Engine serial number
The engine serial number is carved on the aluminum casting of engine.
Serial number as follows:
Manufacturer’s Declaration
This outboard motor complies with the requirements of Directive 2003/44/EC in relation to the exhaust
and noise emissions. The following installation and maintenance instructions, if applied, guarantee that the
outboard motor will remain in compliance with:
1. Exhaust emissions limits throughout the normal life or the engine (350 hours or 10 years, whichever
occurs first) and under normal conditions of use.
2. Noise emissions limits under normal conditions of use.
High Altitude Warning
Operation at High Altitude
The density of air at high altitude is lower than at sea level. Engine power is reduced as the air mass and
air fuel ratio decrease. Outboard motor output will be reduced. This is a natural trend and cannot be
changed by adjusting the engine. At sufficiently high altitudes increased exhaust emissions can also result
due to the increased enrichment of the air fuel ratio. Other high altitude issues can include hard starting,
increased fuel consumption and spark plug fouling.
To alleviate high altitude issues other than the natural power loss, dealer can provide a high altitude
carburetor main jet. The alternative main jet and installation instructions can be obtained by contacting
Customer Support.
The part number and recommended minimum altitude for the application of the high altitude carburetor
main jet are listed in the table below.
MODEL
F2.6
MAIN JET
PART NUMBER
Standard Main Jet
H100-S
Altitude Main Jet
H100×1.08
ALTITUDE
2000 Feet (609.6 Meters)
WARNING
Operating the engine with the wrong engine configuration at a given altitude may increase its
emissions and decrease fuel efficiency and performance. When the carburetor has been modified
for high altitude operation, the air-fuel mixture will be too lean for low altitude use. Operation at
altitudes below 609.6 meters (2,000 feet) with a modified carburetor may cause the engine to
overheat and result in serious engine damage. For use at low altitudes, have your dealer return the
carburetor to original factory specifications.
Table of contents
1.
Main components and General information……………………..……..…………….………….…1
1.1.
Main components……………………………..…….………….………………………….…..……1
1.2.
General information………………………………………………………….…………………..….3
1.2.1.
Specifications…………………………………………………….…………….……………….…3
1.2.2.
Fueling instructions…….………………………………….…………..……………….……..…..4
1.2.3.
Propeller selection…….……………………………………………….…………………......…...5
2.
Operation…………….……….…………………………………………….………............................6
2.1
Installation………………………………………………………………….……………..................6
2.1.1.
Mounting height………………………………………………………….…………….................7
2.1.2.
Clamping the outboard motor………………………..…………….….………….……..............9
2.2
Breaking in engine……………………………………………………….…......…….....................9
2.3
Pre-operation checks………………………………………………….…………….....................10
2.4
Filling fuel……………………….………………………………………………............................12
2.5
Starting engine……..…………………………………………………….……….........................13
2.6
Warming up engine.…………………………………………………….……….........…..............16
2.7
Shifting.…………………………………………………….…………….………................….......18
2.7.1.
Forward………………………………………………….…………….………...........................18
2.7.2.
Reverse………………………………………………….…………….………........... ..........….19
2.8
Tiller………………………………………………………………………………………................20
2.9
Stopping engine………………..……………………………………………………. .…..........….22
2.10 Trimming outboard motor………………………………………………………………..........…23
2.11 Tilting up and down………………………………………………………………….........……...24
2.11.1. Tilting up………………………………………………………………………………..........….24
2.11.2. Tilting down………………..……………………………………………………..….................26
2.12 Cruising in other conditions…………………………………………………………..........……27
2.12.1. Cruising in shallow water…………………………………………………………......…....….27
2.12.2. Cruising in salt water………………………………………………………………..........……28
3.
Maintenance………………………………………………………………………………..............29
3.1
Greasing………………………………………………………………………………..............…29
3.2
Cleaning and adjusting spark plug……………………………………………….....…….....…30
3.3
Checking fuel system………………………………………………………………….........…...30
3.4
Inspecting idling speed……………………………………………………………….........….…31
3.5
Changing engine oil…………………………………………………………………........…..….31
3.6
Checking wiring and connectors…………………………………………………….....….....…33
3.7
Checking for leakage…………………………………………………………………...........…..33
3.8
Checking propeller……………………………………………………………………….........…34
3.8.1.
Removing the propeller…………………………………………………………….......…...…35
3.8.2.
Installing the propeller……………………………………………………………….........…...35
3.9
Changing gear oil…………………………………………………………………….......…...….36
3.10 Cleaning fuel tank………….……………………………………………..…..................……...37
3.11 Checking and replacing anode(s).………………………………………...................….........38
3.12
3.13
Checking top cowling………….……………………………………………....................….....38
Maintenance table………….……………………………………………….................…….....39
4.
4.1
4.2
Transporting and storing outboard motor……..…………………..……….…..................…... .41
Transporting…………………………………………………………………...................….......41
Storing…………………………………………………………….……….................………... ..42
5.
5.1
5.2
5.3
Action in emergency………………………………………....……............................................44
Impact damage………………………………………………………………............................44
Starter will not operate…………………………………….....................................................44
Treatment of submerged motor…………………………….…………………........................48
6.
Troubleshooting………………………………………………….……………….........................50
7.
Circuit diagram ………………………………………………….…………….............................54
1. Main components and General information
1.1 Main components
10
9
11
1
18
12
17
13
2
8
14
7
15
3
4
6
16
5
1.Top cowling
8.Clamp bracket
14.Throttle grip
2.Carrying handle
9.Tiller handle
15.Clamp screw
3.Steering friction screw
10.Engine stop button/
16.Rope attachment
4.Anti-cavitation plate
Engine stop lanyard switch
5.Propeller
11.Starter handle
6.Cooling water inlet
12.Top cowling lock levers
7.Trim rod
13.Throttle friction adjuster
1
17.Gear shift lever
18.Choke knob
Your model includes a built-in fuel tank, its parts are as follows:
1
2
3
4
1. Air vent screw
2. Fuel tank cap
3. Built-in fuel tank
4. Fuel cock (close position)
WARNING
The fuel tank supplied with this engine could only be used as supply of fuel for its running and
must not be as a fuel storage container.
2
1.2 General information
1.2.1 Specifications
Parameter
Items
Type of engine
Displacement
Bore X stroke
Gear ratio
Overall length
Overall width
Overall height(S/L)
Weight(S/L)
Transom height(S/L)
Performance
Items
Data
4-stroke S
3
72cm
54.0mm×31.5mm
2.08(27/13)
645mm
343mm
1013/1140mm
17/18Kg
381/508mm
Recommended fuel
Built-in fuel tank capacity
Recommended engine oil
Engine oil quantity
Recommended gear oil
Gear oil quantity
Spark plug
Spark plug gap
Data
Maximum output
1.9Kw/5500Rpm
(2.6HP)
Full throttle
operating range
5250~5750Rpm
Idling speed
(in neutral)
Items
1900±100Rpm
Items
Valve clearance IN
(cold engine)
Valve clearance EX
(cold engine)
Tightening
Torque for
engine
3
Data
Unleaded regular gasoline
1.2L
SAE10W30 or SAE10W40
0.35L
Hypoid gear oil SAE﹟90
3
75cm
BR6HS
0.6~0.7mm
Data
0.08~0.12mm
0.08~0.12mm
Spark plug
25.0Nm
Engine oil
drain bolt
18.0Nm
1.2.2 Fueling instructions
Fueling instructions:
Recommended gasoline:
Regular unleaded gasoline, If it is not available,
then premium gasoline.
If knocking or pinging occurs, use a different brand of gasoline or premium unleaded fuel. If leaded
gasoline is usually used, engine valves and related parts should be inspected after every 100 hours of
operation.
WARNING:
Do not smoke when refueling, and keep away from sparks, flames, or other sources of ignition.
 Stop engine before refueling.
 Refuel in a well-ventilated area. Refuel portable fuel tanks off the boat.
 Do not overfill the fuel tank.
 Take care not to spill gasoline, if gasoline spills, wipe it up immediately.
 Tighten the filler cap securely after refueling.
 If you should swallow some gasoline, inhale a lot of gasoline vapor, or get gasoline in your eye,
get immediate medical attentions.
 If any gasoline spills onto your skin, immediately wash with soap and water. Change clothing if
gasoline spills on it.
 Touch the fuel nozzle to metal components to prevent electrostatic sparks.

4
CAUTION:
Use only new clean gasoline which has been stored in clean containers and is not contaminated
with water or foreign matter.
Engine oil:
Recommended engine oil: 4-stroke outboard motor oil SAE10W30 and SAE10W40 (0.35L).
WARNING:
 Do not start the engine when the oil level is low. Serious damage might occur.
 Always check the oil level before starting the engine.
CAUTION:
All 4-stroke engines are shipped from the factory without engine oil.
1.2.3 Propeller selection
The performance of your outboard motor will be critically affected by your choice of propeller, as an
incorrect choice could adversely affect performance. The outboard motor is fitted with propellers chosen
to perform well over a range of applications, but there may beuses where a propeller with a different pitch
would be more appropriate. “PARSUN” dealers stock a range of propellers and can advise you and install
a propeller on your outboard that is best suited to your application.
For a greater boat load and a low engine speed, a smaller-pitch propeller is more suitable. Conversely,
A large-pitch propeller is more suitable for a smaller operating load as it enables the correct engine speed to
be maintained.
5
2 Operation
2.1 Installation
Mount the outboard motor on the center line (keel line) of the boat. For boats without a keel or which are
asymmetrical, consult your dealer.
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1. center line (keel line)
NOTE:
During water testing check the buoyancy of the boat, at rest, with its maximum load. Check that
the static water level on the exhaust housing is low enough to prevent water entry into the power head,
when water rises due to waves when the outboard is not running.
WARNING:

Overpowering a boat could cause severe instability. Do not install an outboard motor with more
horsepower than the maximum rating on the capacity plate of the boat. If the boat does not
have a capacity plate, consult the boat manufacturer.
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Improper mounting of the outboard motor could result in hazardous conditions. For permanently
mounted models, your dealer or other person experienced in proper rigging should mount the
motor. If you are mounting the motor yourself, you should be trained by an experienced person.
For portable models, your dealer or other person experienced in proper outboard motor mounting
should show you how to mount your motor.
 The information presented in this section is intended as reference only. Proper mounting depends
in part on experience and the specific boat and motor combination.

2.1.1 Mounting height
The mounting height of the outboard motor greatly affects your boat running efficiency. If the mounting
height is too high, cavitation tends to occur, thus reducing the propulsion. If the mounting height is too low,
the water resistance will increase and thereby reduce engine efficiency. Mount the outboard motor so that
the anti-cavitation plate is between the bottom of the boat and a level 25mm below it.
~
7
NOTE:
The optimum mounting height of the outboard motor is affected by the boat and motor combination
and the desired use. Test runs at a different height can help determine the optimum mounting height.
For further information, consult your “PARSUN” dealer or boat manufacturer.
2.1.2 Clamping the outboard motor
1. Tighten the transom clamp screw evenly and securely. Occasionally check the clamp screws for
tightness during operation of the outboard motor because they could become loose due to engine
vibration.
WARNING:
 Loose clamp screws could allow the outboard motor to fall off or move on the transom.
This could cause loss of control.
 Make sure the clamp screws are tightened securely. Occasionally check the screws for
tightness during operation.
8
2. If the engine restraint cable attachment is equipped on your engine, an engine restraint cable or chain
should be used. Attach to a secure mounting point on the boat to avoid the engine being completely
lost if it accidentally falls off the transom.
3. Secure the clamp bracket to the transom using the appropriate bolts. For details, consult your PARSUN
dealer.
WARNING:
Avoid using bolts, nuts or washers inappropriate. After tightening, test running the engine and
check their tightness.
2.2 Breaking in engine
Your new engine requires a period of break-in to allow mating surfaces of moving parts to wear in evenly.
CAUTION:
Failure to follow the break-in procedure could result in reduced engine life or even severe engine
damage.
1. For the first hour of operation:
Run the engine at 2000 r/min or at approximately half throttle.
9
2. For the second hour of operation:
Run the engine at 3000 r/min or at approximately three-quarter throttle.
3. For the next eight hours of operation:
Avoid continuous operation at full throttle for more than five minutes at a time.
4. Operate the engine normally.
2.3 Pre-operation checks
Fuel
 Check to be sure you have plenty of fuel for your trip.
 Make sure there are no fuel leaks or gasoline fumes.
 Check fuel line connections to be sure they are tight.
 Be sure the fuel tank is positioned on a secure, flat surface, and that the fuel line is
not twisted or flattened, or likely to contact sharp objects.
Controls
 Check throttle, shift and steering for proper operation before starting the engine.
 The controls should work smoothly, without binding or unusual free play.
 Look for loose or damaged connections.
 Check operation of the starter and stop switches when the outboard motor is in the water.
Engine
 Check the engine and engine mounting.
 Look for loose or damaged fasteners.
 Check the propeller for damage.
10
Checking the engine oil level
1. Put the outboard motor in an upright position (not tilted).
2. Check the oil level using the oil level check window to be sure the level falls between the upper and
lower marks. Fill with oil if it is below the lower mark, or drain to the specified level if it is above the
upper mark.
1
1.oil level check window
11
1. Upper level mark
2. Lower level mark
WARNING:
If any item in the pre-operation check is not working properly, have it inspected and repaired before
operating the outboard motor. Otherwise an accident could occur.
CAUTION:
Do not start the engine out of water. Overheating and serious engine damage can occur.
2.4 Filling fuel
WARNING:
Gasoline and its vapors are highly flammable and explosive. Keep away from sparks, cigarettes,
flames, or other sources of ignition.
1. Remove the fuel tank cap.
2. Carefully fill the fuel tank.
12
3. Securely close the cap after filling the tank. Wipe up any spilled fuel.
2.5 Starting engine
1. Loosen the air vent screw on the fuel tank cap.
One turn for built-in tank.
2. Open the fuel cock.
13
3. Place the gear shift lever in neutral.
NOTE:
Attach the engine stop switch lanyard to secure place on your clothing, or your arm or leg. Then
install the lock plate on the other end of the lanyard into the engine stop switch.
WARNING:



The engine must be started in neutral otherwise damage to the starter can occur.
Do not attach the lanyard to clothing that could tear loose. Do not route the lanyard where it
could become entangled, preventing it from functioning.
Avoid accidentally pulling the lanyard during normal
operation. Loss of engine power means the loss of
steering control. Also, without engine power, the boat
could slow rapidly. This could cause people and objects
in the boat to be thrown forward.
14
4. Place the throttle grip in the “START” (start) position.
5. Pull out the choke knob fully.
NOTE:


It is not necessary to use the choke when starting a warm engine.
If the choke is left in the “START” (start) position while the engine is running, the engine will
run poorly or stall.
15
6. Pull the manual starter handle slowly until you feel resistance. Then give a strong pull straight to crank
and start the engine. Repeat if necessary.
7. After the engine starts, slowly return the manual starter handle to its original position before releasing it.
8. Slowly return the throttle grip to the fully closed position.
CAUTION:


When the engine is cold, it needs to be warmed up.
If the engine does not start on the first try, repeat the procedure. If the engine fails to start after
4 or 5 tries, open the throttle a small amount (between 1/8 and 1/4), and try again.
2.6 Warming up engine
1. After starting the engine, return the choke knob to the halfway position. For approximately the first 5
minutes after starting, warm up the engine by operating at one fifth throttle or less. After the engine has
warmed up, push the choke knob in fully.
16
CAUTION:
 If the choke knob is left pulled out after the engine starts, the engine will stall.
℃ o r less
 In the temperatures of -5
seconds after starting.
2. Check for steady flow of water from the cooling water pilot hole.
CAUTION:


If water is not flowing out of the hole at all times while the engine is running, stop the engine
and check whether the cooling water inlet on the lower case or the cooling water pilot hole is
blocked.
If the problem cannot be located and corrected, consult your PARSUN dealer.
17
2.7 Shifting
WARNING:
Before shifting, make sure there are no swimmers or obstacles in the water near you.
CAUTION:
To shift from forward to reverse or vice versa, first close the throttle so that the engine idles
(or runs at low speeds).
2.7.1 Forward
1. Place the throttle grip in the fully closed position.
2. Move the gear shift lever quickly and firmly from neutral to forward.
18
2.7.2 Reverse
WARNING:
When operating in reverse, go slowly. Do not open the throttle more than half. Otherwise the boat
could become unstable, which could result in loss of control and an accident.
1. Place the throttle trip in the fully closed position.
2. Turning the outboard motor around 180°.
3. Move the gear shift lever quickly and firmly from neutral to reverse.
19
NOTE:
The outboard motor can turn 360° in its bracket (full-pivot system). The boat can also be backed
up by simply turning the outboard motor around 180° with the steering handle facing toward you.
2.8 Tiller
1. Change direction
To change direction, move the tiller handle to the left or right as necessary.
2. Change speed
Turn the grip counterclockwise to increase speed and clockwise to decrease speed.
3. Throttle indicator
The throttle indicator is on the throttle grip. The fuel consumption curve on the throttle indicator shows
the relative amount of fuel consumed for each throttle position.
20
Choose the setting that offers the best performance and fuel economy for the desired operation.
1
1.Throttle indicator
4. Throttle friction adjuster
The throttle friction adjuster is on the tiller handle, which provides adjustable resistance to movement
of the throttle grip, and can be set according to operator preference. To increase resistance, turn the
adjuster clockwise. To decrease resistance, turn the adjuster counterclockwise. When constant speed
is desired, tighten the adjuster to maintain the desired throttle setting.
WARNING:
Do not over-tighten the friction adjuster. If there is too much resistance, it could be difficult to
move throttle lever or grip, which could result in an accident.
21
2.9 Stopping engine
NOTE:
Before stopping the engine, first let it cool off for a few minutes at idle or low speed. Stopping the
engine immediately after operating at high speed is not recommended.
PROCEDURE:
1. Push and hold the engine stop button until the engine comes to a complete stop.
NOTE:
If the outboard motor is equipped with an
engine stop switch lanyard, the engine
can also be stopped by pulling the lanyard
and removing the lock plate from the engine
stop switch.
2. Tighten the air vent screw on the fuel tank cap and set the fuel cock lever or knob to the closed
position.
22
2.10 Trimming outboard motor
There are 4 or 5 holes provided in the clamp bracket to adjust the outboard motor trim angle.
1. Stop the engine.
2. Remove the trim rod from the clamp
bracket while slightly tilting the outboard
motor up.
3. Reposition the rod in the desired hole. Make test runs with the trim set to different angles to find the
position that works best for your boat and operating conditions.
WARNING:
 Stop the engine before adjusting the trim angle.
 Use care to avoid being pinched when removing or installing the rod.
 Use caution when trying a trim position for the first time. Increase speed gradually and watch
for any signs of instability or control problems. Improper trim angle can cause loss of control.
2.11Tilting up and down
If the engine will be stopped for some time or if the boat is moored in shallows, the outboard motor should
be tilted up to protect the propeller and casing from damaged by collision with obstructions, and also to reduce
corrosion.
23
WARNING:
 Be sure all people are clear of the outboard motor when tilting up and down, also be careful
not to pinch any body parts between the drive unit and engine bracket.
 Tighten the air vent screw and place the fuel cock in the closed position if the outboard motor
will be tilted for more than a few minutes. Otherwise fuel may leak.
NOTE:
 Do not tilt up the engine by pushing the tiller handle because this could break the handle.
o
 The outboard motor cannot be tilted when in reverse or when the outboard motor is turn 180
(facing the rear).
2.11.1 Tilting up
1. Place the gear shift lever in neutral (if equipped) and face the outboard motor forward.
24
2. Tighten the steering friction adjuster by turning it clockwise to prevent the motor from turning freely.
3. Tighten the air vent screw.
4. Close the fuel cock.
25
5.
Hold the rear handle and tilt the engine up fully until the tilt support lever automatically locks.
2.11.2 Tilting down
1. Slightly tilt the outboard motor up.
2. Slowly tilt the outboard motor down while pulling the tilt support bar lever up.
26
3. Loose the steering friction adjuster by turning it counterclockwise, and adjust the steering friction
according to operator preference.
WARNING:
If there is too much resistance it could be difficult to steer, which could result in anaccident.
2.12 Cruising in other conditions
2.12.1 Cruising in shallow water
The outboard motor can be tilted up partially to allow operation in shallow water.
WARNING:
 The tilt lock mechanism does not work while the shallow water cruising system is being used.
Run the boat at the lowest possible speed to avoid the outboard motor being lifted out of the
water, resulting in loss of control.
 Return the outboard motor to its normal position as soon as the boat is back in deeper water.
27
CAUTION:
The cooling water inlet on the lower unit should be not above the surface of the water when setting
up for and cruising in shallow water. Otherwise severe damage from overheating can result. For
tilting procedure, see section 2.11.
2.12.2 Cruising in salt water
After operating in salt water, wash out the cooling water passages with fresh water to prevent them from
becoming clogged with salt deposits.
28
3. Maintenance
While using the outboard motor, the periodic maintenance is necessary for you to ensure its performance.
WARNING:
Be sure to turn off the engine when you perform maintenance unless otherwise specified. If you or
the owner is not familiar with machine servicing, this work should be done by your PARSUN dealer or
other qualified mechanic.
CAUTION:
If replacement parts are necessary, use only genuine PARSUN parts or parts of the same type and
of equivalent strength and materials.
3.1 Greasing
29
3.2 Cleaning and adjusting spark plug
You should periodically remove and inspect the spark plug because heat and deposits will cause the spark
plug to slowly break down and erode. If necessary, you should replace the spark plug with another of the
correct type.
Before fitting the spark plug, measure the electrode gap with a wire thickness gauge,adjust the gap to
specification if necessary.
0.6-0.7mm
When fitting the plug, always clean the gasket surface and use a new gasket. Wipe off any dirt from the
threads and screw in the spark plug to the correct torque.
3.3 Checking the fuel system
1. Check the fuel lines for leaks, crack, or malfunction. If a problem is found, your PARSUN dealer or other
qualified mechanic should repair it immediately.
30
WARNING:
 Check for fuel leakage regularly.
 If any fuel leakage is found, the fuel system must be repaired by a qualified mechanic.
3.4 Inspecting idling speed
A diagnostic tachometer should be used for this procedure. Results may vary depending on whether
testing is conducted with the flushing attachment, in a test tank, or with the outboard motor in the water.
1. Start the engine and allow it to warm up fully in neutral until it is running smoothly.
2. Verify whether the idle speed is set to specification.
Idle speed:1900±100Rpm
CAUTION:
Correct idling speed inspection is only possible if the engine is fully warmed up. If not warmed up
fully, the idle speed will measure higher than normal. If you have difficulty verifying the idle speed, or
the idle speed requires adjustment, consult a PARSUN dealer or other qualified mechanic.
3.5 Changing engine oil
WARNING:
 Avoid draining the engine oil immediately after stopping the engine. The oil is hot and should
be handled with care to avoid burns.
 Be sure the outboard motor is securely fastened to the transom or a stable stand.
31
CAUTION:
Change the engine oil after the first 10 hours of operation, and every 100 hours or at 6-month
intervals thereafter. Otherwise the engine will wear quickly. Change the engine oil when the oil is still
warm.
1. Put the outboard motor in an upright position (not tilted).
2. Prepare a suitable container that holds a larger amount than the engine oil capacity. Loosen and
remove the drain screw while holding the container under the drain hole. Then remove the oil filler
cap. Let oil drain completely. Wipe up any spilled oil immediately.
32
3. Put a new gasket on the oil drain screw. Tighten the drain screw.
4. Add the correct amount of oil through the filler hole. Install the filler cap.
5. Start the engine and make sure that there are no oil leaks.
6. Turn off the engine and wait 3 minutes. Recheck the oil level using oil level check window to be sure
the level falls between the upper and lower marks.
CAUTION:
The oil should be changed more often when the engine is operated under adverse conditions such
as extended trolling.
3.6 Checking wiring and connectors
Check that each grounding wire is properly secured and each connector is engaged securely.
3.7 Checking for leakage
Check that no exhaust or water leaks from the joints between the exhaust cover, cylinder head, and body
cylinder. Check for oil leaks on the around the engine.
CAUTION:
If any leaks are found, consult your PARSUN dealer.
33
3.8 Checking propeller
WARNING:
 Before inspecting, removing or installing the propeller, always take actions to ensure the
enginewill not accidentally starts, such as removing the spark plug caps from the spark plugs,
placing the shift control in neutral, and removing the lanyard from the engine stop switch, etc..
Serious accident could occur if the engine starts when you are nearby.
 Do not use your hand to hold the propeller when loosening or tightening the propeller nut.. Put
a wood block between the anti-cavitation plate and the propeller to prevent the propeller from
turning.
1. Check each of the propeller blades for wear, erosion from cavitation or ventilation, or other damage.
2. Check the propeller shaft for damage.
3. Check the splines/shear pin for wear or damage.
4. Check for fish line tangled around the propeller shaft.
34
5. Check for the propeller shaft oil seal for damage.
3.8.1 Removing the propeller
1. Straighten the cotter pin and pull it out using a pair of pliers.
2. Remove the propeller nut, washer, and spacer (if equipped).
3. Remove the propeller and thrust washer.
1.
2.
3.
4.
5.
1
2
3
4
5
Cotter pin
Propeller nut
Washer
Propeller
Thrust washer
3.8.2 Installing the propeller
CAUTION:
 Be sure to install the thrust washer before instating the propeller, otherwise the lower case and
propeller boss could be damaged.
 Be sure to use a new cotter pin and bend the ends over securely. Otherwise the propeller could
come off during operation and be lost.
1. Apply a marine grease or corrosion resistant grease to the propeller shaft.
2. Install the spacer (if equipped), thrust washer, and propeller on the propeller shaft.
3. Install the spacer (if equipped) and the washer.
35
4. Tighten the propeller nut. Align the propeller nut with the propeller shaft hole.
Insert a new cotter pin in the hole and bend the cotter pin ends.
3.9 Changing gear oil
WARNING:
 Be sure the outboard motor is securely fastened to the transom or a stable stand.
 Never get under the lower unit while the outboard motor is tilted, even when the tilt support
lever or knob is locked. Serious injury could occur if the motor falls.
1. Tilt the outboard motor so that the gear oil drain screw is at the lowest point possible.
2. Place a suitable container under the gear case.
3. Remove gear oil drain screw.
2
1
1.
Gear oil drain screw
2.
Oil level plug
CAUTION:
Change the gear oil after the first 10 hours of operation, and every 100 hours or at 6-month
intervals thereafter. Otherwise the gear will wear quickly.
36
4. Remove the oil level plug to allow the oil to drain completely.
CAUTION:
Inspect the used oil after it has been drained. If the oil is milky, water is getting into the gear case
which can cause gear damage. Consult PARSUN dealer.
5. Use a flexible or pressurized filling device, inject the gear oil into the gear oil drain
screw hole.
6. When the oil begins to flow out of the oil level plug hole, insert and tighten the oil
level plug (If necessary, change the seal spacer).
7.
Insert and tighten the gear oil drain screw (If necessary, change the seal spacer).
3.10 Cleaning fuel tank
WARNING:
 Keep away from sparks, cigarettes, flames, or other sources of ignition when cleaning the fuel
tank.
 Cleaning the fuel tank in a well-ventilated open air.
1. Empty the fuel tank into an approved container.
2. Pour a small amount of suitable solvent into the tank. Install the cap and shake the tank. Drain the
solvent completely.
3. Pull the fuel joint assembly out of the tank.
4. Clean the filter in a suitable cleaning solvent and allow it to dry.
5. Replace the gasket with a new one. Reinstall the fuel joint assembly and tighten the screws firmly.
37
3.11 Checking and replacing anode(s)
Inspect the external anodes periodically. Remove scales from the surfaces of the anodes. Consult a
PARSUN dealer for replacement of external anodes.
CAUTION:
Do not paint anodes, as this would render them ineffective and can cause more rapid engine corrosion.
3.12 Checking top cowling
Check the fitting of the top cowling by pushing it with both hands. If it is loose have it repaired by your
PARSUN dealer.
38
3.13 Maintenance Table
When utilized under normal condition, maintained and repaired in the proper manner, the motor can work
normally within the normal life period.
Frequency of maintenance operations may be adjusted according to the operating conditions, but the
following table gives general guidelines.
The “●” symbol indicates the check-ups which you may carry out by yourself.
The “○” symbol indicates work to be carried out by your Parsun dealer.
Initial
Every
Item
Operations
10 hours
50 hours
100 hours
200 hours
( 1 month ) ( 3 months ) (6 months ) ( 1 year )
Anode(s) (external)
Check/replacement
●/○
●/○
Anode(s) (internal)
Check/replacement
○
Cooling water passages Cleaning
●
●
Cowling clamp
Check
●
Fuel filter (disposable)
Check/cleaning
●
●
●
Fuel system
Check
●
●
●
Fuel tank (portable
Check/cleaning
●
tank)
Gear oil
Change
●
●
Greasing points
Greasing
●
Idling speed
Check/adjustment
●/○
●/○
(carburetor models)
Propeller and cotter pin Check/replacement
●
●
Shift link/shift cable
Check/adjustment
○
39
Continuation /…1
Item
Thermostat
Throttle link/throttle
cable/Throttle pick-up
timing
Water pump
Engine oil
Oil filter
Spark plug (s)
Operations
Initial
10 hours
50 hours
( 1 month ) ( 3 months )
Every
100 hours
200 hours
(6 months )
( 1 year )
Check
○
Check/
adjustment
○
Check
Check/
replacement
Change
Cleaning/
adjustment/
replacement
Check/replacement
○
●
●
○
●
●
Timing belt
○
○
Valve clearance
Check/adjustment
○
○
(OHC,OHV)
NOTE:
When operating in salt water, turbid or muddy water, the engine should be flushed with clean water
after every use.
40
4 Transporting and storing
4.1 Transporting
The outboard motor should be trailed and stored in the normal running position. If there is insufficient road
clearance in this position, then trailer the outboard motor in the tilt position using a motor support device.
CAUTION:
Do not use the tilt support lever or knob when trailering the boat. The outboard motor could shake
loose from the tilt support and fall.
WARNING:
 Never get under the lower unit while it is tilted, even if a motor support bar is used.
 When transporting or storing the outboard motor while removed from a boat, keep the outboard
motor in the attitude shown.
figure 1
figure 2
figure 3
Note:


Place a towel or something similar under the outboard motor to protect it from damage when
as shown in the figure 2 or figure 3 above.
Please make sure the tiller handle faces down to make the throttle handle point to the direction
of propeller.
41
4.2 Storing
When storing your PARSUN outboard motor for prolonged periods of time (2 months or longer), several
important procedures must be performed to prevent excessive damage. It is advisable to have your outboard
motor serviced by an authorized PARSUN dealer prior to storage.However, you, the owner, with a minimum of
tools, can perform the following procedures.
CAUTION:
 Keep the outboard motor in an upright attitude when transporting and storing it. If storing or
transporting the outboard motor on its side (not upright), put it on a cushion after draining the
engine oil completely.
 Do not place the outboard motor on its side before the cooling water has drained from it
completely.
 Store the outboard motor in a dry, well-ventilated place, not in direct sunlight.
1. Wash the outboard motor body using fresh water.
2.
Place the fuel cock in the closed position, disconnect the fuel line and tighten the air vent screw, if
equipped.
3. Remove the engine top cowling and silencer cover.
4. Install the outboard motor on the test tank.
2
1
1.
2.
42
Lowest water level
Water surface
5. Fill the tank with fresh water to above the level of the anti-cavitation plate.
CAUTION:
If the fresh water level is below the level of the anti-cavitation plate, or if the water supply is
insufficient, engine seizure may occur.
6. Start the engine. Flush the cooling system. Perform the flushing and fogging at the same time,
as fogging/lubricating of the engine is mandatory to prevent engine rust.
WARNING:
 Do not touch or remove electrical parts when starting or during the operation.
 Keep hands, hair, and clothes away from the flywheel and other rotating parts while the engine
is running.
7. Run the engine at a fast idle for a few minutes in neutral position.
8. Just prior to turning off the engine, quickly spray “Fogging Oil” alternately into each carburetor or the
fogging hole of the silencer cover, if equipped.
9. If “Fogging Oil” is not available, run the engine at a fast idle until the fuel system empties and the engine
stops.
10. If “Fogging Oil” is not available, remove the spark plug(s). Pour a teaspoonful of clean engine oil into
each cylinder. Crank several times manually. Replace the spark plug(s).
11. Drain the fuel from the fuel tank completely.
43
5 Actions in emergency
5.1 Impact damage
If the outboard motor hits an object in the water, follow the procedure below.
1. Stop the engine immediately.
2. Inspect the control system and all components for damage.
3. Whether damage is found or not, return to the nearest harbor slowly and carefully.
4. Have a PARSUN dealer inspect the outboard motor before operating it again.
5.2 Starter will not operate
If the starter mechanism does not operate, the engine can be started with an emergency starter rope.
WARNING:





Use this procedure only in an emergency and only to return to port for repairs.
Be sure no one is standing behind you when pulling the starter rope. It could whip behind you
and injure someone.
Do not install the starter mechanism or top cowling after engine is running.
Keep loose clothing and other objects away when starting the engine. Do not touch the flywheel
or other moving parts when the engine is running.
Do not touch the ignition coil, spark plug wire, spark plug cap, or other electrical components
when starting or operating the motor.
44
The procedure is as follows:
1. Remove the top cowling.
2. Remove the fuel tank bolts.
3. While lifting the fuel tank up, remove the bolt from the starter case.
4. While lifting the starter case up, disconnect the choke wire from the carburetor.
45
5. Remove the starter case.
6. Install the fuel flywheel case by installing the bolts.
7. Install 2 bolts into the rear section of the fuel tank.
8. Prepare the engine for starting. For further information, see section 2.5.
46
9. Turn the lever on the carburetor to operate the choke system when the engine is cold. After the engine
starts, return the lever to the original position.
10. Insert the knotted end of the emergency starter rope into the notch in the flywheel rotor and wind the
rope several turns around the flywheel clockwise.
11. Pull the rope slowly until resistance is felt.
12. Give a strong pull straight out to crank and start the engine. Repeat it necessary.
47
5.3 Treatment of submerged motor
If the outboard is submerged, immediately take it to a PARSUN dealer. Otherwise some corrosion may
begin almost immediately.
1. Thoroughly wash away contaminants with fresh water.
2. Remove the spark plug(s), then face the spark plug hole downward to allow any mud, or contaminants
to drain.
3. Drain the fuel from the carburetor, fuel filter, and fuel line. Drain the engine oil completely.
4. Fill the sump with fresh engine oil.
5. Feed engine fogging oil or engine oil through the carburetor(s) and spark plug holes while starting the
engine.
48
6. Take the outboard motor to a PARSUN dealer as soon as possible.
CAUTION:
Do not attempt to run the outboard motor until it has been completely inspected.
49
6. Troubleshooting
Trouble type
Starter will not
operate
Engine will not
start (starter
operates)
Engine idles
irregularly or
stalls
Possible reason
Recovery action
Starter components are faulty
Have serviced by your dealer
Shift level is not in neutral
Shift to neutral
Fuel tank is empty
Fill tank with clean, fresh fuel
Fuel is contaminated or stale
Fill tank with clean, fresh fuel
Spark plug(s) fouled or of incorrect type
Inspect spark plug(s). Clean or replace
with recommended type
Spark plug cap(s) fitted incorrectly
Ignition parts are faulty
Check and re-fit cap(s)
Check wires for wear or breaks. Tighten
all loose connections. Replace worn or
broken wires
Have serviced by your dealer
Engine stop switch lanyard is not attached
Attach lanyard
Engine inner parts are damaged
Have serviced by your dealer
Spark plug(s) fouled or of incorrect type.
Inspect spark plug(s). Clean or replace
with recommended type
Fuel system is obstructed
Check for pinched or kinked fuel line or
other obstructions in fuel system
Fuel is contaminated or stale
Fill tank with clean, fresh fuel
Ignition wiring damaged or poorly
connected
50
Continuation /…1
Trouble type
Engine idles
irregularly or
stalls
Engine power
loss
Possible reason
Recovery action
Spark plug gap is incorrect
Inspect and adjust as specified
Ignition wiring damaged or poorly
connected
Check wires for wear or breaks.
Tighten all loose connections.
Replace worn or broken wires
Specified engine oil is not being used
Check and replace oil as specified
Thermostat is faulty or clogged
Have serviced by your dealer
Carburetor adjustments are incorrect
Have serviced by your dealer
Carburetor is clogged
Have serviced by your dealer
Air vent screw on fuel tank is closed
Open air vent screw
Throttle valve adjustment is incorrect
Have serviced by your dealer
Choke knob is pulled out
Return to home position
Motor angle is too high
Return to normal operating position
Propeller is damaged
Repair or replace propeller
Trim angle is incorrect
Adjust trim angle to achieve most
efficient operation
Motor is mounted at incorrect
transom height
Adjust motor to proper transom
height
Boat bottom is fouled with marine
growth
Clean boat bottom
51
Continuation /…2
Trouble type
Engine power
loss
Possible reason
Recovery action
Weeds or other foreign matter are tangled
on gear housing
Remove foreign matter and clean
lower unit
Spark plug(s) are fouled or incorrect
type
Inspect spark plug(s). Clean or
replace with recommended type
Fuel system is obstructed
Check for pinched or kinked fuel line
or other obstructions in fuel system
Fuel filter is clogged
Replace with recommended type
Fuel is contaminated or stale
Fill tank with clean, fresh fuel
Spark plug gap is incorrect
Inspect and adjust as specified
Ignition wiring is damaged or poorly
connected
Check wires for wear or breaks.
Tighten all loose connections.
Replace worn or broken wires
Ignition parts have failed
Have serviced by your dealer
Specified engine oil is not being used
Check and replace oil as specified
Thermostat is faulty or clogged
Have serviced by your dealer
Air vent screw on fuel tank is closed
Open air vent screw
Specified spark plug(s) are not being used
Check and replace spark plug(s) as
specified
52
Continuation /…3
Trouble type
Engine vibrates
excessively
Possible reason
Recovery action
Propeller is damaged
Repair or replace propeller
Propeller shaft is damaged
Weeds or other foreign matter are tangled on
propeller
Motor mounting bolt is loose
Have serviced by your dealer
Steering pivot is loose
Tighten it
Steering pivot is damaged
Have serviced by your dealer
53
Remove and clean propeller
Tighten bolt
7. Circuit diagram
5
W
B
B
W
W
B
54
black
5
4
3
2
1
white
SN. DESCRIPTION
Spark plug
Earthing
Engine stop switch
Ignitor ass'y
Magnet flywheel
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