Parsun T50 BM User manual

OUTBOARD MOTORS
OWNER’S MANUAL
T50 BM/BW/FW
T60A BM/BW/FW
SUZHOU PARSUN POWER MACHINE CO., LTD.

Thank you for owning an outboard motor.
Thank you for your trust in our company and products.
The outboard motors are powerful, economic and safe, manufactured with
advanced technology.
Please read this manual carefully before operating your outboard motor. A thorough
understanding of the manual will help you to know this product for proper operation,
maintenance and care. This will ensure that your outboard motor operates well under all
conditions.
We seek 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 dealer or for reference in case your outboard motor is stolen.
1. Outboard motor serial number location
Serial number as follows:
SN
1

Engine serial number
The engine serial number is carved on the aluminum casting of engine.
Engine serial number as follows:

Table of contents
1. Main components and General information....................................................................................... 1
1.1 Main components............................................................................................................................ 1
1.2 General information......................................................................................................................... 5
1.2.1Specification.................................................................................................................................. 5
1.2.2 Fueling instruction........................................................................................................................ 6
1.2.3 Propeller selection........................................................................................................................ 7
2. Operation........................................................................................................................................... 8
2.1 Installation....................................................................................................................................... 8
2.1.1 Mounting height............................................................................................................................ 9
2.1.2 Clamping the outboard motor..................................................................................................... 10
2.2 Breaking in engine..........................................................................................................................11
2.3 Pre-operation checks .................................................................................................................... 12
2.4 Filling fuel...................................................................................................................................... 14
2.5 Starting engine .............................................................................................................................. 14
2.6 Warm up engine............................................................................................................................ 20
2.7 Shifting .......................................................................................................................................... 21
2.7.1 Forward...................................................................................................................................... 21
2.7.2 Reverse...................................................................................................................................... 22
2.8 Tiller............................................................................................................................................... 23
2.9 Stopping engine............................................................................................................................. 25
2.10 Trimming outboard motor ............................................................................................................ 27

2.11 Tilting up & down ......................................................................................................................... 28
2.11.1 Tilting up ................................................................................................................................... 28
2.11.2 Tilting down............................................................................................................................... 30
2.12 Cruising in other conditions......................................................................................................... 31
2.12.1 Cruising in shallow water.......................................................................................................... 31
2.12.2 Cruising in salt water................................................................................................................ 31
3. Maintenance.................................................................................................................................... 31
3.1 Greasing........................................................................................................................................ 32
3.2 Cleaning and adjusting spark plug ................................................................................................ 33
3.3 Checking the fuel system .............................................................................................................. 34
3.3.1 Cleaning the fuel filter................................................................................................................. 35
3.4 Inspecting idling speed.................................................................................................................. 36
3.5 Checking wiring and connectors.................................................................................................... 37
3.6 Checking for leakage..................................................................................................................... 37
3.7 Checking propeller ........................................................................................................................ 37
3.7.1 Removing the propeller .............................................................................................................. 39
3.7.2 Installing the propeller ................................................................................................................ 39
3.8 Changing gear oil.......................................................................................................................... 40
3.9 Cleaning fuel tank.......................................................................................................................... 41
3.10 Checking and replacing anode(s)................................................................................................ 42
3.11 Checking top cowling................................................................................................................... 42
3.12 Maintenance Table ...................................................................................................................... 43
4 Transporting and storing................................................................................................................... 46

4.1 Transporting .................................................................................................................................. 46
4.2 Storing........................................................................................................................................... 46
5. Actions in emergency ...................................................................................................................... 48
5.1 Impact damage.............................................................................................................................. 48
5.2 Power trim and tilt unit will not operate.......................................................................................... 49
5.3 Starter will not operate................................................................................................................... 50
5.5 Treatment of submerged motor..................................................................................................... 52
6. Troubleshooting............................................................................................................................... 53
7. Circuit diagram................................................................................................................................ 57

1
1. Main components and General information
1.1 Main components
1. Throttle grip 6. Top cowling lock handle 11. Top cowling lock handle
2. Tiller handle 7. Anti-cavitation plate 12. Choke handle
3. Engine stop button and switch 8. Propeller 13. Clamp bracket
4. Fuel connector 9. Top cowling 14. Portable fuel tank
5. Cooling water inlet 10. Starters handle 15. Remote control box
6
8
14 15
7
9
10
11
12
13
1
2
5
3
4

2
A portable fuel tank includes parts as follows:
1. Fuel tank cap 3. Air vent screw
2. Fuel joint 4. Fuel gauge
WARNING：
The fuel tank supplier with this engine could only be used as supply of fuel for its running and
must not be as a fuel storage container.
Remote control box
The remote control lever actuates both the shifter and the throttle. The electrical switches are mounted
on the remote control box.
1. Remoter control lever
2. Neutral interlock trigger
3. Neutral throttle lever
4. Main switch/choke switch
5. Engine stop switch
6. Throttle friction adjuster
1 3
2 4

3
Remote control lever
Moving the lever forward from the neutral position engages forward gear. Pulling the lever back from
neutral engages reverse. The engine will continue to run at idle until the lever is moved about 35º (a
detent can be felt). Moving the lever farther opens the throttle, and the engine will begin to accelerate.
1. Neutral “N”
2. Forward “F”
3. Reverse “R”
4. Shift
5. Fully closed
6. Throttle
7. Fully open
Neutral interlock trigger
To shift out of neutral, first pull the neutral interlock trigger up.
1. Neutral interlock trigger

4
Neutral throttle lever
To open the throttle without shifting into either forward or reverse, put the remote control lever in the
neutral position and lift the neutral throttle lever.
NOTE:
The neutral throttle lever will operate only when the remote control lever is in neutral.
The remote control lever will operate only when the neutral throttle lever is in the closed
position.
1. Fully open
2. Fully closed

5
1.2 General information
1.2.1Specification
Main technical data:
Items Data Items Data
Type of engine Three cylinders,2-stroke Fuel tank capacity 24L
Displacement 849cm3Gear oil quantity 610cm3
Bore X stroke 72.0mm×69.5mm Spark plug NGK BR7HS
Gear ratio 2.08（27/13）Overall width 364mm
Weight T60ABML/T50BML 105Kg Overall
height
BML/BWL 1530mm
Weight T60ABWL/T50BWL 106.5kg FWL 1479mm
Weight T60AFWL/T50FWL 107Kg Transom
height
BML/BWL 559mm
Recommended engine oil 2-stroke engine oil FWL 508mm
Recommended fuel Unleaded regular gasoline Overall length 1197mm(BM/BW)
Recommended gear oil Hypoid gear oil SAE﹟90 Overall length 713mm(FW)
Main performance:
Items Data Items Data
Maximum output 60HP 44.1Kw/5000rpm
Tightening torque
for engine
Spark plug 25.0Nm
50HP 36.8Kw/5000rpm Propeller nut 34.0Nm
Idling speed (in neutral) 1000±50rpm
Full throttle operating range 4500~5500rpm

6
2.2 Fueling instruction
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.
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.
CAUTION:

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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: 2-stroke outboard motor oil.
Gasoline and oil mixing:
Break-in period 25:1
Gasoline 1L 12L 14L 24L
Engine oil 0.04L 0.48L 0.56L 0.96L
After break-in 50:1 Gasoline 1L 12L 14L 24L
Engine oil 0.02L 0.24L 0.28L 0.48L
CAUTION:
Be sure to mix gasoline and oil completely, otherwise the engine may be damaged.
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 be uses where a propeller with a
different pitch would be more appropriate. Dealers stock a range of propellers and can advise you and
install a propeller on your out board that is best suited to your application.

8
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.
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 dealers.
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.
1

9
Improper mounting of the outboard motor could result in hazardous conditions. 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.
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.
(0-1in)
0～25mm

10
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 bolts evenly and securely. Occasionally check the clamp bolts for
tightness during operation of the outboard motor because they could become loose due to engine
vibration.
CAUTION:
Outboards that use clamp bracket screws alone are INSUFFICIENT to properly and safely
secure the outboard to the Transom. Proper installation of the outboard includes bolting the
engine to the boat through the transom.
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

11
check the screws for tightness during operation.
3. Secure the clamp bracket to the transom using the appropriate bolts. For details, consult your dealer.
WARNING：
Always use the bolts, nuts and washers coming as accessories inside the engine package. If
the engine package does not include such, or if you want to use different size bolts, nuts or
washers, please consult your Parsun dealer and choose bolts, nuts and washers with
appropriate materials and strength.
2.2 Breaking in engine
Your new engine requires a period of breaking to allow mating surfaces of moving parts to wear in
evenly.
Gasoline and oil mixing:
Break-in period 25:1 Gasoline 1L 12L 14L 24L
Engine oil 0.04L 0.48L 0.56L 0.96L
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.

12
CAUTION
Failure to follow the break-in procedure could result in reduced engine life or even severe
engine Damage.
1. for the first 10 minutes of operation.
Run the engine at the idle speed.
2. for next 50 minutes of operation:
Run the engine at 3000 r/min or at approximately half throttle.
3. for the next two hours of operation:
Run the engine at 4000 r/min or at approximately three-quarter throttle.
4. for the next seven hours of operation:
Avoid continuous operation at full throttle for more than five minutes at a time.
5. 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.

13
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, top cowling and engine mounting.
. Look for loose or damaged fasteners.
. Check the propeller for damage.
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.