2010 YAMAHA PW80 check engine

TABLE OF CONTENTS
LOCATION OF IMPORTANT
LABELS
............................................. 1-1
SAFETY INFORMATION
.................. 2-1
DESCRIPTION
.................................. 3-1
Left view .......................................... 3-1
Right view ........................................ 3-2
Controls and instruments ................ 3-3
INSTRUMENT AND CONTROL
FUNCTIONS
....................................... 4-1
Handlebar switch ............................ 4-1
Power reduction plate ..................... 4-1
Shift pedal ...................................... 4-1
Brake lever ..................................... 4-2
Brake pedal .................................... 4-2
Fuel tank cap .................................. 4-2
Fuel ................................................ 4-3
Fuel tank breather hose ................. 4-4
2-stroke engine oil .......................... 4-4
Fuel cock ........................................ 4-5
Starter (choke) lever “ ” ................ 4-6
Kickstarter ...................................... 4-6
Seat ................................................ 4-7
Shock absorber assembly .............. 4-7
Sidestand ....................................... 4-8
FOR YOUR SAFETY –
PRE-OPERATION CHECKS
.............. 5-1
OPERATION AND IMPORTANT
RIDING POINTS
................................. 6-1
Starting and warming up a cold
engine ......................................... 6-1
Starting a warm engine .................. 6-2
Shifting ........................................... 6-2
Engine break-in .............................. 6-3
Parking ........................................... 6-4
PPERIODIC MAINTENANCE AND
ADJUSTMENT
................................... 7-1
Owner’s tool kit ............................... 7-1
Periodic maintenance and
lubrication chart .......................... 7-2
Checking the spark plug ................. 7-5
Removing the power reduction
plate ............................................ 7-6
Transmission oil ............................. 7-7
Cleaning the air filter element ........ 7-8
Cleaning the spark arrester ............ 7-9
Adjusting the carburetor ............... 7-10
Adjusting the engine idling
speed ........................................ 7-10
Adjusting the throttle cable free
play ........................................... 7-11
Tires ............................................. 7-12
Spoke wheels ............................... 7-13
Adjusting the brake lever free
play ........................................... 7-13
Adjusting the brake pedal free
play ........................................... 7-14Checking the front and rear
brake shoes ............................... 7-15
Drive chain slack ........................... 7-16
Cleaning and lubricating the
drive chain ................................. 7-17
Checking and lubricating the
cables ........................................ 7-18
Checking and lubricating the
throttle grip and cable ................ 7-18
Adjusting the Autolube pump ........ 7-18
Checking and lubricating the
brake lever ................................. 7-19
Checking and lubricating the
brake pedal ................................ 7-19
Checking and lubricating the
sidestand ................................... 7-19
Checking the front fork .................. 7-20
Checking the steering ................... 7-20
Checking the wheel bearings ........ 7-21
Supporting the motorcycle ............ 7-21
Front wheel ................................... 7-22
Rear wheel .................................... 7-24
Troubleshooting ............................ 7-26
Troubleshooting chart ................... 7-27
MOTORCYCLE CARE AND
STORAGE
.......................................... 8-1
Matte color caution ......................... 8-1
Care ................................................ 8-1
Storage ........................................... 8-3

INSTRUMENT AND CONTROL FUNCTIONS
4-4
1
2
3
4
5
6
7
8
9
curs, use a gasoline of a different brand
or premium unleaded fuel. Use of un-
leaded fuel will extend spark plug life
and reduce maintenance costs.

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.
EAU41202
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.
TIP

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 4-7.)
2. Remove the 2-stroke engine oil
1. Fuel tank breather hose
1
1. Minimum level
1

5-1
2
3
4
56
7
8
9

FOR YOUR SAFETY – PRE-OPERATION CHECKS
EAU15596
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING

EWA11151
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equipment damage.
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided in
this manual, have the vehicle inspected by a Yamaha dealer.
Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel

Check fuel level in fuel tank.

Refuel if necessary.

Check fuel line for leakage.4-3
2-stroke engine oil

Check oil level in oil tank.

If necessary, add recommended oil to specified level.

Check vehicle for oil leakage.4-4
Transmission oil

Check oil level in transmission case.

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

Check operation.

Lubricate cable if necessary.

Check lever free play.

Adjust if necessary.7-13, 7-15
Rear brake

Check operation.

Check pedal free play.

Adjust if necessary.7-14
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.7-11, 7-18
Control cables

Make sure that operation is smooth.

Lubricate if necessary.7-18

FOR YOUR SAFETY – PRE-OPERATION CHECKS
5-2
1
2
3
4
5
6
7
8
9

Drive chain

Check chain slack.

Adjust if necessary.

Check chain condition.

Lubricate if necessary.7-16, 7-17
Wheels and tires

Check for damage.

Check tire condition and tread depth.

Check air pressure.

Correct if necessary.7-12, 7-13
Shift pedal

Make sure that operation is smooth.

Correct if necessary.—
Brake pedal

Make sure that operation is smooth.

Lubricate pedal pivoting point if necessary.7-19
Brake lever

Make sure that operation is smooth.

Lubricate lever pivoting point if necessary.7-19
Sidestand

Make sure that operation is smooth.

Lubricate pivot if necessary.7-19
Chassis fasteners

Make sure that all nuts, bolts and screws are properly tightened.

Tighten if necessary.—
Engine stop switch

Check operation.4-1
ITEM CHECKS PAGE

OPERATION AND IMPORTANT RIDING POINTS
6-3
2
3
4
5
67
8
9
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.
NOTICE

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

PERIODIC MAINTENANCE AND ADJUSTMENT
7-3
2
3
4
5
6
78
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.Replace if necessary.
13
Sidestand pivotCheck operation.Apply lithium-soap-based g
rease lightly.
14 *Front fork
Check 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 ADJUSTMENT
7-4
1
2
3
4
5
6
7
8
9
TIP

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.
18Transmission oilCheck for oil leakage .Correct if necessary.Change (warm engine before draining).
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.
21
Brake lever pivot shaftApply lithium-soap-based g
rease lightly.
22Brake pedal pivot
shaft
Apply lithium-soap-based g
rease lightly.
23 *Cylinder head and
exhaust system
Check 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 ADJUSTMENT
7-5
2
3
4
5
6
78
9

EAU19603
Checking the spark plug
The spark plug is an important engine
component, which is easy to check.
Since heat and deposits will cause any
spark plug to slowly erode, the spark
plug should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plug can re-
veal the condition of the engine.
To remove the spark plug
1. Remove the spark plug cap.
2. Remove the spark plug as shown,
with the spark plug wrench includ-
ed in the owner’s tool kit.
To check the spark plug
1. Check that the porcelain insulator
around the center electrode of the
spark plug is a medium-to-light tan
(the ideal color when the vehicle is
ridden normally).
TIP

If the spark plug shows a distinctly dif-
ferent color, the engine could be oper-
ating improperly. Do not attempt to
diagnose such problems yourself. In-
stead, have a Yamaha dealer check
the vehicle.
2. Check the spark plug for elec-
trode erosion and excessive car-
bon or other deposits, and replaceit if necessary.
To install the spark plug
1. Measure the spark plug gap with a
wire thickness gauge and, if nec-
essary, adjust the gap to specifica-
tion.
2. Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the
1. Spark plug cap
1

1. Spark plug wrench
1

Specified spark plug:
PW80


NGK/BPR6HS
PW80Z NGK/BP6HS



DENSO/W20FP
1. Spark plug gap
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
1