Page 10 of 72

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
Page 19 of 72
DESCRIPTION
2-2
2
3
4
5
6
7
8
9
EAU10420
Right view6 12
3
4 5
1. Spark arrester (page 6-9)
2. Seat (page 3-6)
3. Transmission oil filler cap (page 6-7)
4. Spark plug cap (page 6-5)
5. Brake pedal (page 3-2)
6. Kickstarter (page 3-6)
Page 20 of 72
DESCRIPTION
2-3
1
2
3
4
5
6
7
8
9
EAU10430
Controls and instruments
12
43
1. Right handlebar switch (page 3-1)
2. Brake lever (page 3-2)
3. Throttle grip (page 6-11)
4. Fuel tank cap (page 3-2)
Page 22 of 72
INSTRUMENT AND CONTROL FUNCTIONS
3-2
1
2
3
4
5
6
7
8
9
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.
EAU13181
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
EWA11090
Make sure that the fuel tank cap is
properly closed before riding.
1. Brake lever
1
1. Brake pedal
1
1. Fuel tank cap
1
Page 29 of 72

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
Page 30 of 72
PRE-OPERATION CHECKS
4-3
1
2
3
4
5
6
7
8
9
Brake and shift pedals
Make sure that operation is smooth.
Lubricate pedal pivoting points if necessary.6-20
Brake lever
Make sure that operation is smooth.
Lubricate lever pivoting point if necessary.6-20
Sidestand
Make sure that operation is smooth.
Lubricate pivot if necessary.6-21
Chassis fasteners
Make sure that all nuts, bolts and screws are properly tightened.
Tighten if necessary.—
Engine stop switch
Check operation.3-1
ITEM CHECKS PAGE
Page 33 of 72

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.
Page 36 of 72
PERIODIC MAINTENANCE AND MINOR REPAIR
6-2
1
2
3
4
5
6
7
8
9
EAU41763
Periodic maintenance and lubrication chart
NOTE:
From 160 hours, repeat the maintenance intervals starting from 40 hours.
Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical
skills.
NO. ITEM CHECK OR MAINTENANCE JOBINITIAL THEREAFTER EVERY
10
hours20
hours40
hours80
hours40
hours80
hours160
hours
1*Fuel line
Check fuel hoses for cracks or damage.Replace if necessary.
2Spark plugCheck condition.Adjust gap and clean.Replace if necessary.
3Air filter elementClean with solvent.Replace if necessary.
4*ClutchCheck operation.Adjust if necessary.
5*Front brakeCheck operation.Adjust brake lever free play.Replace brake shoes. Whenever worn to the limit
6*Rear brakeCheck operation.Adjust brake pedal free play.Replace brake shoes. Whenever worn to the limit
7*WheelsCheck runout, spoke tightness and for
damage.Tighten spokes if necessary.