2008 YAMAHA PW80 engine oil

TABLE OF CONTENTS
SAFETY INFORMATION
...................1-1
Safe riding ........................................1-1
Location of important labels .............1-4
DESCRIPTION
...................................2-1
Left view ...........................................2-1
Right view .........................................2-2
Controls and instruments..................2-3
INSTRUMENT AND CONTROL
FUNCTIONS
........................................3-1
Handlebar switch .............................3-1
Power reduction plate ......................3-1
Shift pedal ........................................3-1
Brake lever ......................................3-2
Brake pedal .....................................3-2
Fuel tank cap ...................................3-2
Fuel ..................................................3-3
Fuel tank breather hose ...................3-4
2-stroke engine oil ...........................3-4
Fuel cock .........................................3-5
Starter (choke) lever “
1
” .................3-6
Kickstarter ........................................3-6
Seat .................................................3-6
Shock absorber ...............................3-7
PRE-OPERATION CHECKS
...............4-1
Pre-operation check list ...................4-2
OPERATION AND IMPORTANT
RIDING POINTS
.................................. 5-1
Starting and warming up a cold
engine .......................................... 5-1
Starting a warm engine ................... 5-2
Shifting ............................................ 5-2
Engine break-in ............................... 5-3
Parking ............................................ 5-4
PERIODIC MAINTENANCE AND
MINOR REPAIR
.................................. 6-1
Owner’s tool kit ................................ 6-1
Periodic maintenance and lubrication
chart ............................................. 6-2
Checking the spark plug .................. 6-5
Removing the power reduction
plate ............................................. 6-6
Transmission oil .............................. 6-7
Cleaning the air filter element ......... 6-8
Cleaning the spark arrester ............. 6-9
Adjusting the carburetor ................ 6-10
Adjusting the engine idling
speed ......................................... 6-11
Adjusting the throttle cable free
play ............................................ 6-11
Tires .............................................. 6-12
Spoke wheels ................................ 6-13
Accessories and replacement
parts ........................................... 6-14
Adjusting the brake lever free
play ............................................ 6-14Adjusting the brake pedal free
play ............................................ 6-15
Checking the front and rear brake
shoes ......................................... 6-16
Drive chain slack ........................... 6-16
Cleaning and lubricating the drive
chain .......................................... 6-18
Checking and lubricating the
cables ........................................ 6-19
Checking and lubricating the throttle
grip and cable ............................ 6-19
Adjusting the Autolube pump ........ 6-19
Checking and lubricating the brake
and shift pedals ......................... 6-20
Checking and lubricating the brake
lever ........................................... 6-20
Checking and lubricating the
sidestand ................................... 6-21
Checking the front fork .................. 6-21
Checking the steering ................... 6-22
Checking the wheel bearings ........ 6-22
Supporting the motorcycle ............ 6-23
Front wheel ................................... 6-23
Rear wheel .................................... 6-26
Troubleshooting ............................ 6-27
Troubleshooting chart ................... 6-28
MOTORCYCLE CARE AND
STORAGE
........................................... 7-1
Matte color caution .......................... 7-1
Care ................................................ 7-1

2-1
1
2
3
4
5
6
7
8
9

DESCRIPTION
EAU10410
Left view1
23 4 5
6 7

1. Air filter element (page 6-8)
2. Fuel cock (page 3-5)
3. Throttle stop screw (page 6-11)
4. Starter (choke) lever (page 3-6)
5. 2-stroke engine oil tank (page 3-4)
6. Sidestand (page 6-21)
7. Shift pedal (page 3-1)

INSTRUMENT AND CONTROL FUNCTIONS
3-4
1
2
3
4
5
6
7
8
9

EAU13412
Fuel tank breather hose
Before operating the motorcycle:

Check the fuel tank breather hose
connection.

Check the fuel tank breather hose
for cracks or damage, and replace
it if damaged.

Make sure that the fuel tank
breather hose is not blocked, and
clean it if necessary.
EAU41201
2-stroke engine oil
Make sure that there is sufficient oil in
the 2-stroke engine oil tank. If the
2-stroke engine oil is at or below the
minimum level as shown in the illustra-
tion, add a sufficient amount of the rec-
ommended 2-stroke engine oil as
follows.
NOTE:

Make sure that the motorcycle is posi-
tioned straight up when checking the
2-stroke engine oil level. A slight tilt to
the side can result in a false reading.
1. Remove the seat. (See page 3-6.)
2. Remove the 2-stroke engine oiltank cap and add the recommend-
ed oil.
3. Install the 2-stroke engine oil tank
cap.
NOTE:

Make sure that the 2-stroke engine oil
tank cap is properly closed.
4. Install the seat.
1. Fuel tank breather hose
1

1. Minimum level
1

1. 2-stroke engine oil tank
2. 2-stroke engine oil tank cap
Recommended oil:
See page 8-1.
Oil quantity:
0.95 L (1.00 US qt) (0.84 Imp.qt)
1
2

PRE-OPERATION CHECKS
4-2
2
3
45
6
7
8
9

EAU15605
Pre-operation check list
ITEM CHECKS PAGE
Fuel

Check fuel level in fuel tank.

Refuel if necessary.

Check fuel line for leakage.3-3
2-stroke engine oil

Check oil level in oil tank.

If necessary, add recommended oil to specified level.

Check vehicle for oil leakage.3-4
Transmission oil

Check oil level in transmission case.

If necessary, add recommended oil to specified level.6-7
Front brake

Check operation.

Lubricate cable if necessary.

Check lever free play.

Adjust if necessary.6-14, 6-16
Rear brake

Check operation.

Check pedal free play.

Adjust if necessary.6-15, 6-16
Throttle grip

Make sure that operation is smooth.

Check cable free play.

If necessary, have Yamaha dealer adjust cable free play and lubricate cable
and grip housing.6-11, 6-19
Control cables

Make sure that operation is smooth.

Lubricate if necessary.6-19
Drive chain

Check chain slack.

Adjust if necessary.

Check chain condition.

Lubricate if necessary.6-16, 6-18
Wheels and tires

Check for damage.

Check tire condition and tread depth.

Check air pressure.

Correct if necessary.6-12, 6-13

OPERATION AND IMPORTANT RIDING POINTS
5-3
2
3
4
56
7
8
9 shifting gears, otherwise damage to
the engine and drive train may re-

sult.
3. Open the throttle gradually.
4. Once the motorcycle has reached
a speed high enough to change
gears, close the throttle.
5. Shift into second gear and release
the shift pedal.
6. Open the throttle gradually.
7. Follow the same procedure when
shifting to the next higher gear.
EAU16710
To decelerate
1. Close the throttle and apply both
the front and the rear brakes to
slow the motorcycle.
2. Downshift through the gears and
shift the transmission into the neu-
tral position when the motorcycle
is almost completely stopped.
EAU39920
Engine 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 ac-
custom the rider to the motorcycle dur-
ing this time. Please read the following
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 themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that might
result in engine overheating must be
avoided. However, momentary
full-throttle operation under load (i.e.,
two to three seconds maximum) does
not harm the engine. Each full-throttle
acceleration should be followed 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, thor-
oughly check the motorcycle for loose
parts, oil leakage and any other prob-
lems. Be sure to inspect and make ad-justments thoroughly, especially cable
and drive chain slack and loose
spokes. In addition, check all fittings
and fasteners for looseness, and tight-
en if necessary.
CAUTION:

ECA10270
If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
2
3
4
5
67
8
9
8*Tires
Check tread depth and for damage.Replace if necessary.Check air pressure.Correct if necessary.
9*Wheel bearingsCheck bearings for smooth operation.Replace if necessary.
10 *Steering bearingsCheck bearing assemblies for looseness.Moderately repack with lithium-soap-based
grease.
11Drive chainCheck chain slack/alignment and condi-
tion.Adjust and lubricate chain with Yamaha
chain and cable lube thoroughly.Every rideRemove and clean.
12 *Chassis fastenersCheck all chassis fitting and fasteners.Correct if necessary.
13Sidestand pivotCheck operation.Apply lithium-soap-based grease (all-pur-
pose grease) lightly.
14 *Front forkCheck operation and for oil leakage.Replace if necessary.
15 *Shock absorber
assemblyCheck operation and for oil leakage.Replace if necessary.
16 *CarburetorCheck engine idling speed and starter
operation.Clean.Replace if necessary. NO. ITEM CHECK OR MAINTENANCE JOBINITIAL THEREAFTER EVERY
10
hours20
hours40
hours80
hours40
hours80
hours160
hours

PERIODIC MAINTENANCE AND MINOR REPAIR
6-4
1
2
3
4
5
6
7
8
9
NOTE:

The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
17 *Autolube pump
Check operation.Correct if necessary.Bleed.
18Transmission oilCheck for oil leakage .Correct if necessary.Change.
19 *Control cablesApply Yamaha chain and cable lube or
engine oil 10W-30 lightly.
20 *Throttle grip housing
and cableCheck operation and free play.Apply Yamaha chain and cable lube or
engine oil 10W-30 lightly.
21Brake lever pivot shaftApply lithium-soap-based grease (all-pur-
pose grease) lightly.
22Brake pedal pivot
shaftApply lithium-soap-based grease (all-pur-
pose grease) lightly.
23 *Cylinder head and
exhaust systemCheck for leakage.Tighten if necessary.Decarbonize if necessary.
24 *Spark arresterClean. NO. ITEM CHECK OR MAINTENANCE JOBINITIAL THEREAFTER EVERY
10
hours20
hours40
hours80
hours40
hours80
hours160
hours

PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
1
2
3
4
5
6
7
8
9
CAUTION:

ECA10452

In order to prevent clutch slip-
page (since the transmission oil
also lubricates the clutch), do
not mix any chemical additives.
Do not use oils with a diesel
specification of “CD” or oils of a
higher quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.

Make sure that no foreign mate-
rial enters the transmission.
5. Start the engine, and then let it idle
for several minutes while checking
the transmission for oil leakage. If
oil is leaking, immediately turn the
engine off and check for the cause.
EAU41161
Cleaning the air filter element
The air filter element should be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart.
Clean the air filter element more fre-
quently if you are riding in unusually
wet or dusty areas.
1. Remove the air filter case cover by
removing the screws.
2. Pull the air filter element out.3. Remove the sponge material from
the air filter case cover, clean it
with solvent, and then squeeze the
remaining solvent out.
Recommended transmission oil:
See page 8-1.
Oil change quantity:
0.65 L (0.69 US qt) (0.57 Imp.qt)
1. Air filter case cover
2. Screw
2
2
1

1. Sponge material
2. Air filter case cover
1
2