2020 YAMAHA PW50 oil

Table of contents
Location of important la bels ........... 1-1
Safety information ............................ 2-1
Description ....................................... 3-1
Left view ......................................... 3-1
Right view ....................................... 3-2
Controls and instruments ............... 3-3
Instrument an d control functions ... 4-1
Handlebar switch............................ 4-1
Speed limiter and power reduction
plate ............................................ 4-1
Front brake lever ............................ 4-2
Rear brake lever ............................. 4-3
Fuel tank cap .................................. 4-3
Fuel ................................................. 4-4
Fuel tank breather hose.................. 4-5
2-stroke engine oil .......................... 4-6
Fuel cock ........................................ 4-6
Starter (choke) lever ...................... 4-7
Kickstarter ...................................... 4-7
Seat ................................................ 4-8
Cable lock (for Europe) ................... 4-9
For your safety – pre-operation
checks ............................................... 5-1
Operation an d important ri din g
points ................................................ 6-1
Starting and warming up a cold engine ......................................... 6-1
Starting a warm engine .................. 6-2
Starting off ...................................... 6-2
Acceleration and deceleration ........ 6-3
Braking ........................................... 6-3
Engine break-in .............................. 6-4
Parking ........................................... 6-4
Perio dic maintenance an d
a d justment ........................................ 7-1
Owner’s tool kit .............................. 7-2
Periodic maintenance chart for the emission control system ............. 7-3
General maintenance and
lubrication chart .......................... 7-4 Checking the spark plug ................. 7-6
Removing the power reduction
plate ............................................. 7-7
Transmission oil .............................. 7-8
Middle and final gear cases .......... 7-10
Cleaning the air filter element ....... 7-10
Cleaning the spark arrester ........... 7-11
Adjusting the carburetor ............... 7-12
Adjusting the engine idling speed ......................................... 7-13
Checking the throttle grip free
play ............................................ 7-14
Tires .............................................. 7-14
Panel wheels ................................. 7-16
Adjusting the front and rear brake lever free play ............................ 7-17
Checking the front and rear brake
shoes ......................................... 7-18
Checking and lubricating the cables ........................................ 7-19
Checking and lubricating the throttle grip and cable ............... 7-19
Adjusting the Autolube pump ....... 7-20
Lubricating the front and rear
brake levers ............................... 7-20
Checking and lubricating the
centerstand ................................ 7-21
Checking the front fork ................. 7-21
Checking the steering ................... 7-22
Checking the wheel bearings ........ 7-22
Front wheel ................................... 7-23
Rear wheel .................................... 7-24
Troubleshooting ............................ 7-27
Troubleshooting chart ................... 7-28
Motorcycle care an d stora ge .......... 8-1
Matte color caution ......................... 8-1
Care................................................. 8-1
Storage............................................ 8-3
Specifications ................................... 9-1
Consumer information ................... 10-1
Identification numbers .................. 10-1
In dex ................................................ 11-1
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Description
3-2
3
EAU63391
Right view
12345
6
1. Spark arrester (page 7-11)
2. Seat (page 4-8)
3. Transmission oil filler cap (page 7-8)
4. Fuel tank cap (page 4-3)
5. 2-stroke engine oil tank cap (page 4-6)
6. Transmission oil drain bolt (page 7-8)
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Instrument and control functions
4-6
4
EAU13454
2-stroke en gine oil
Make sure that there is sufficient 2-
stroke engine oil in the oil tank. Add the
recommended 2-stroke engine oil as
necessary.
NOTICE
ECA16671
Make sure that the 2-stroke en gine
oil tank cap is properly installe d.
EAU40702
Fuel cock
The fuel cock supplies fuel from the
tank to the carburetor while filtering it
also.
The fuel cock has two positions:
S (stop)
With the lever in this position, fuel will
not flow. Always return the lever to this
position when the engine is not run-
ning.
O (on)
With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.
1. 2-stroke engine oil tank cap
2. Minimum level mark
Recommen ded oil:
See page 9-1.
Oil quantity: 0.30 L (0.32 US qt, 0.26 Imp.qt)
2 1
1. Arrow mark pointing to “S” (stop)
1. Arrow mark pointing to “O” (on)
1
1
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For your safety – pre-operation checks
5-1
5
EAU63440
Inspect your vehicle each time you use it to make sure the vehicle is in safe oper-
ating condition. Always follow the inspection and maintenance procedures and
schedules described in the Owner’s Manual.
WARNING
EWA11152
Failure to inspect or maintain the vehicle properly increases the possibility
of an acci dent or equipment d amage. Do not operate the vehicle if you fin d
any prob lem. If a pro blem cannot be corrected b y the proce dures provi ded
in this manual, have the vehicle inspecte d b y a Yamaha d ealer.
Before using this vehicle, check the following points:
ITEM CHECKSPAGE
Fuel • Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.
• Check fuel tank breather hose for obstructions, cracks
or damage, and check hose connection. 4-4, 4-5
2-stroke en gine oil • Check oil level in oil tank.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage. 4-6
Tr a n s m i s s i o n o i l • Check oil level in transmission case.
• If necessary, add recommended oil to specified level. 7-8
Mi dd le an d final g ear
cases • Check vehicle for grease leakage.
7-10
Front brake • Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary. 7-17,
7-18
Rear brake • Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary. 7-17,
7-18
Throttle g rip • 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. 7-14,
7-19
Control ca bles • Make sure that operation is smooth.
• Lubricate if necessary.
7-19
Wheels an d tires •Check for damage.
• Check tire condition and tread depth.
• Check air pressure.
• Correct if necessary. 7-14,
7-16
Brake levers • Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.
7-20
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Operation and important rid ing points
6-4
6
EAU42031
En gine break-in
There is never a more important period
in the life of your engine than the first 5
hours of riding. It is also important to
accustom the rider to the motorcycle
during this time. Please read the fol-
lowing information carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
5 hours of operation. The various parts
in the engine wear and polish them-
selves to the correct operating clear-
ances. During this period, prolonged
full-throttle operation or any condition
that might result in engine overheating
must be avoided. However, momen-
tary full-throttle operation under load
(i.e., two to three seconds maximum)
does not harm the engine. Each full-
throttle acceleration should be fol-
lowed with a substantial rest period for
the engine. To allow the engine to cool
down from the temporary buildup of
heat, cruise at a lower engine speed.
After the first 5 hours of operation,
thoroughly check the motorcycle for
loose parts, oil leakage and any other
problems. Be sure to inspect and make
adjustments thoroughly, especially ca-
bles. In addition, check all fittings and
fasteners for looseness, and tighten if
necessary.
NOTICE
ECA10271
If any en gine trou ble shoul d occur
d urin g the en gine break-in perio d,
imme diately have a Yamaha d ealer
check the vehicle.
EAU40723
Parkin g
When parking, stop the engine, and
then turn the fuel cock lever to “S”
(stop).
WARNING
EWA10312
Since the en gine an d exhaust
system can become very hot,
park in a place where ped estri-
ans or chil dren are not likely to
touch them and b e burne d.
 Do not park on a slope or on soft
groun d, otherwise the vehicle
may overturn, increasin g the
risk of a fuel leak an d fire.
 Do not park near g rass or other
flammab le materials which
mi ght catch fire.
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Periodic maintenance an d a djustment
7-4
7
EAU69202
General maintenance and lubrication chart
TIP
Items marked with an asterisk should be performed by a Yamaha dealer as they
require special tools, data and technical skills.
4 *Tires Check tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary.
5
*Wheel bearings Check bearings for smooth operation.
Replace if necessary.
6
*Steering bearings Check bearing assemblies for
looseness.
7 *Middle and final gear
cases Check for grease leakage.
8
*Chassis fasteners Check all chassis fitting and fasteners.
9
*Autolube pump Check operation.
10
*Transmission oil Check for oil leakage.
Correct if necessary.
Change. Correct if necessary. Correct if necessary. Check gears for damage and wear.
Lubricate gears with
lithium-soap-based grease.
Moderately repack with
lithium-soap-based grease.
NO. ITEM CHECK OR MAINTENANCE JOB
1 month3 months
6 months
6 months12 months
1 *
*
*Front brake Check operation.
Adjust brake lever free play.√√√
√
√√√ √
√√√ √
√√√ √
√√√ √
√√√ √
√√√ √
√√√ √ √
√
√√√ √
Replace brake shoes.
Whenever worn to the limit.
2Rear brake Check operation.
Adjust brake lever free play.
Replace brake shoes. Whenever worn to the limit.
Every 2 years
Every 2 years
3Wheels Check runout and for damage.
Replace if necessary.
THEREAFTER
EVERYINITIAL
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Periodic maintenance an d a djustment
7-5
7TIP
The air filter needs more frequent service if you are riding in unusually wet or dusty
areas.
11 *Front and rear brake
lever pivot Apply lithium-soap-based grease
lightly.
12 *Centerstand pivot Check operation.
13
*Shock absorber
assemblies Check operation and for oil leakage.
14
*Control cables Apply Yamaha cable lubricant or other
suitable cable lubricant.
15 *Throttle grip Check operation.
Check throttle grip free play, and
adjust if necessary.
Apply Yamaha cable lubricant or other suitable cable lubricant.
Replace if necessary. Apply lithium-soap-based grease
lightly.
NO. ITEM CHECK OR MAINTENANCE JOB
1 month3 months
6 months
6 months12 months
√√√ √
√√√ √√√
√
√√
√
√
√√
THEREAFTER
EVERYINITIAL
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Periodic maintenance an d a djustment
7-8
7
TIP
Store the power reduction plate with
the Owner’s Manual so that it is readily
available whenever you want to reduce
the engine power.
4. Install the exhaust manifold and its
new gasket by installing the bolts,
and then tighten the bolts to the
specified torque.
EAU40896
Transmission oil
The transmission must be checked for
oil leakage before each ride. If any
leakage is found, have a Yamaha deal-
er check and repair the motorcycle. In
addition, the transmission oil must be
changed at the intervals specified in
the periodic maintenance and lubrica-
tion chart.
To chan ge the transmission oil
1. Place the motorcycle on the cen- terstand.
2. Place an oil pan under the trans- mission to collect the used oil.
3. Remove the transmission oil filler cap, the transmission oil drain bolt
and its gasket to drain the oil from
the transmission.
Tightenin g torque:
Exhaust manifold bolt: 9 N·m (0.9 kgf·m, 6.6 lb·ft)
1. Transmission oil filler cap
1. Transmission oil drain bolt
2. Gasket
1
12
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