YAMAHA PW80 2010 Owner's Manual
Page 21 of 72
 
DESCRIPTION 
3-2 
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5
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EAU10420 
Right view
6 12
3
4 5
 
1. Spark arrester (page 7-9)
2. Seat (page 4-7)
3. Transmission oil filler cap (page 7-7)
4. Spark plug cap (page 7-5)
5. Brake pedal (page 4-2)
6. Kickstarter (page 4-6) 
Page 22 of 72
 
DESCRIPTION 
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EAU10430 
Controls and instruments
12
43
 
1. Handlebar switch (page 4-1)
2. Brake lever (page 4-2)
3. Throttle grip (page 7-11)
4. Fuel tank cap (page 4-2) 
Page 23 of 72
 
4-1 
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INSTRUMENT AND CONTROL FUNCTIONS 
EAU40660 
Handlebar switch  
EAU41130 
Engine stop switch “ENGINE STOP”  
Set this switch to “RUN” before starting
the engine. Set this switch to “OFF” to
stop the engine. 
EAU41590 
Power reduction plate  
Your motorcycle was delivered with a
power reduction plate. Yamaha recom-
mends that all beginning riders start off
with the power reduction plate installed
to limit the amount of power available
while they learn.
Parents should decide when to adjust
the motorcycle for more power as their
youngster’s riding skills improve. Once
the rider can operate with skill at the top
speed with the power reduction plate
installed, the power reduction plate can
be removed. (See page 7-6.) 
EAU39850 
Shift pedal  
This motorcycle is equipped with a con-
stant-mesh 3-speed transmission. The
shift pedal is located on the left side of
the engine. Neutral is at the bottom po-
sition. 
1. Engine stop switch “ENGINE STOP”
1
 
1. Shift pedal
1 
Page 24 of 72
 
INSTRUMENT AND CONTROL FUNCTIONS 
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EAU12890 
Brake lever  
The brake lever is located at the right
handlebar grip. To apply the front
brake, pull the lever toward the handle-
bar grip. 
EAU12941 
Brake pedal  
The brake pedal is on the right side of
the motorcycle. To apply the rear
brake, press down on the brake pedal. 
EAU13182 
Fuel tank cap  
To remove the fuel tank cap, turn it
counterclockwise, and then pull it off.
To install the fuel tank cap, insert it into
the tank opening, and then turn it clock-
wise.
WARNING
 
EWA11091 
Make sure that the fuel tank cap is
properly closed after filling fuel. 
Leaking fuel is a fire hazard. 
1. Brake lever
1
 
1. Brake pedal
1
 
1. Fuel tank cap
1 
Page 25 of 72
 
INSTRUMENT AND CONTROL FUNCTIONS 
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EAU13221 
Fuel  
Make sure there is sufficient gasoline in
the tank.
WARNING
 
EWA10881 
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow 
these instructions. 
1. Before refueling, turn off the en-
gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters and
clothes dryers.
2. Do not overfill the fuel tank. When
refueling, be sure to insert the
pump nozzle into the fuel tank filler
hole. Stop filling when the fuel
reaches the bottom of the filler
tube. Because fuel expands when
it heats up, heat from the engine or
the sun can cause fuel to spill out
of the fuel tank.3. Wipe up any spilled fuel immedi-
ately.  
NOTICE: 
 Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
 
[ECA10071] 
 
4. Be sure to securely close the fuel
tank cap.
WARNING
 
EWA15151 
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline inyour eyes, see your doctor immedi-
ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change 
your clothes. 
EAU41960
NOTICE
 
 ECA15590 
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the piston rings as well as to 
the exhaust system.  
Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging) oc- 
1. Fuel tank filler tube
2. Fuel level
2 1
 
Recommended fuel:  
For Europe: REGULAR UNLEADED 
GASOLINE ONLY
Except for Europe: UNLEADED 
GASOLINE ONLY  
Fuel tank capacity:  
4.9 L (1.29 US gal, 1.08 Imp.gal)  
Fuel reserve amount:  
1.0 L (0.26 US gal, 0.22 Imp.gal) 
Page 26 of 72
 
INSTRUMENT AND CONTROL FUNCTIONS 
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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 
Page 27 of 72
 
INSTRUMENT AND CONTROL FUNCTIONS 
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tank cap and add the recommend-
ed oil.
3. Install the 2-stroke engine oil tank
cap.
NOTICE
 
 ECA16670 
Make sure that the 2-stroke engine 
oil tank cap is properly installed. 
4. Install the seat. 
EAU13561 
Fuel cock  
The fuel cock supplies fuel from the
tank to the carburetor while filtering it al-
so.
The fuel cock has three positions: 
OFF 
With the lever in this position, fuel will
not flow. Always return the lever to this
position when the engine is not running. 
ON  
With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.  
RES
 
1. 2-stroke engine oil tank
2. 2-stroke engine oil tank cap 
Recommended oil: 
See page 9-1. 
Oil quantity: 
0.75 L (0.79 US qt, 0.66 Imp.qt)
1
2
 
1. Arrow mark positioned over “OFF”
RES
ONFUEL
OFF
1 
1. Arrow mark positioned over “ON”
1. Arrow mark positioned over “RES”
ON
FUEL
RES
OFF
1
ON
OFF
ONFUEL RES
1
RES 
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INSTRUMENT AND CONTROL FUNCTIONS 
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This indicates reserve. If you run out of
fuel while riding, move the lever to this
position. Fill the tank at the first oppor-
tunity. Be sure to set the lever back to
“ON” after refueling!
 
EAU13590 
Starter (choke) lever “”  
Starting a cold engine requires a richer
air-fuel mixture, which is supplied by
the starter (choke).
Move the lever in direction (a) to turn on
the starter (choke).
Move the lever in direction (b) to turn off
the starter (choke). 
EAU13680 
Kickstarter  
To start the engine, fold out the kick-
starter lever, move it down lightly with
your foot until the gears engage, and
then push it down smoothly but force-
fully. 
1. Starter (choke) lever “”
1
(a)(b)
 
1. Kickstarter
1 
Page 29 of 72
 
INSTRUMENT AND CONTROL FUNCTIONS 
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EAU41140 
Seat  
To remove the seat 
Remove the nuts, and then pull the seat
off. 
To install the seat 
1. Insert the projection on the front of
the seat into the seat holder as
shown.2. Place the seat in the original posi-
tion, and then tighten the nuts.
TIP
 
Make sure that the seat is properly se- 
cured before riding. 
EAU46021 
Shock absorber assembly 
WARNING
 
EWA10221 
This shock absorber assembly con-
tains highly pressurized nitrogen
gas. Read and understand the fol-
lowing information before handling
the shock absorber assembly. 
 
Do not tamper with or attempt to
open the cylinder assembly. 
 
Do not subject the shock ab-
sorber assembly to an open
flame or other high heat source.
This may cause the unit to ex-
plode due to excessive gas
pressure. 
 
Do not deform or damage the
cylinder in any way. Cylinder
damage will result in poor
damping performance. 
 
Do not dispose of a damaged or
worn-out shock absorber as-
sembly yourself. Take the shock
absorber assembly to a Yamaha 
dealer for any service. 
1. Nut
1
 
1. Seat holder
2. Projection
2
1 
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INSTRUMENT AND CONTROL FUNCTIONS 
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EAU37490 
Sidestand  
The sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
vehicle upright.
WARNING
 
EWA14190 
The vehicle must not be ridden with
the sidestand down, or if the side-
stand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting 
in a possible loss of control. 
1. Sidestand
1