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
Main switch ..................................... 4-1
Handlebar switches ........................ 4-1
Shift pedal ......................................4-2
Brake lever ..................................... 4-2
Brake pedal .................................... 4-3
Fuel tank cap .................................. 4-3
Fuel ................................................ 4-3
Fuel tank breather hose ................. 4-5
Fuel cock ........................................ 4-5
Starter (choke) lever ....................... 4-6
Kickstarter ......................................4-7
Seat ................................................ 4-7
Shock absorber assembly .............. 4-8
Sidestand ....................................... 4-8
Starting circuit cut-off system ......... 4-8FOR 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
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 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
Removing and installing panels ..... 7-7
Checking the spark plug ................ 7-8
Engine oil ....................................... 7-9
Cleaning the air filter element ...... 7-11
Cleaning the spark arrester ......... 7-13
Adjusting the carburetor ............... 7-14
Adjusting the engine idling
speed ........................................ 7-14
Checking the throttle cable
free play .................................... 7-15
Valve clearance ........................... 7-15
Tires ............................................. 7-15Spoke wheels ............................... 7-17
Adjusting the clutch free play ....... 7-17
Adjusting the brake lever free
play ........................................... 7-18
Adjusting the brake pedal free
play ........................................... 7-19
Checking the shift pedal ............... 7-20
Checking the front and
rear brake shoes ....................... 7-20
Drive chain slack .......................... 7-21
Cleaning and lubricating
the drive chain .......................... 7-22
Checking and lubricating
the cables ................................. 7-23
Checking and lubricating
the throttle grip and cable ......... 7-23
Checking and lubricating
the brake lever .......................... 7-23
Checking and lubricating
the brake pedal ......................... 7-24
Checking and lubricating
the sidestand ............................ 7-24
Lubricating the swingarm pivots ... 7-24
Checking the front fork ................. 7-25
Checking the steering .................. 7-25
Checking the wheel bearings ....... 7-26
Battery .......................................... 7-26
Replacing the fuse ....................... 7-27
Supporting the motorcycle ........... 7-28
Front wheel .................................. 7-29
Rear wheel ................................... 7-30
U5B682E0.book Page 1 Tuesday, June 9, 2009 2:04 PM
DESCRIPTION
3-1
3
EAU10410
Left view
6 7 8123 4
5
1. Fuel cock (page 4-5)
2. Starter (choke) lever (page 4-6)
3. Fuse (page 7-27)
4. Battery (page 7-26)
5. Clutch adjusting screw (page 7-17)
6. Engine oil drain bolt (page 7-9)
7. Shift pedal (page 4-2)
8. Throttle stop screw (page 7-14)
U5B682E0.book Page 1 Tuesday, June 9, 2009 2:04 PM
PERIODIC MAINTENANCE AND ADJUSTMENT
7-27
7 battery tends to discharge more quickly
if the vehicle is equipped with optional
electrical accessories.
NOTICE
ECA16520
To charge a VRLA (Valve Regulated
Lead Acid) battery, a special (con-
stant-voltage) battery charger is re-
quired. Using a conventional battery
charger will damage the battery. If
you do not have access to a con-
stant-voltage battery charger, have a
Yamaha dealer charge your battery.To store the battery
1. If the model will not be used for
more than one month, remove the
battery, fully charge it, and then
place it in a cool, dry place.
NOTICE: When removing the
battery, be sure the key is
turned to “OFF” before discon-
necting the coupler.
[ECA16322]
2. If the battery will be stored for more
than two months, check it at least
once a month and fully charge it if
necessary.
3. Fully charge the battery before in-
stallation.
NOTICE
ECA16530
Always keep the battery charged.
Storing a discharged battery can
cause permanent battery damage.
EAU42023
Replacing the fuse The fuse is located inside the battery
coupler. (See page 7-26.)
If the fuse is blown, replace it as fol-
lows.
1. Turn the key to “OFF” and turn off
all electrical circuits.
2. Disconnect the battery coupler.
3. Remove the blown fuse, and then
install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a higher amperage
rating than recommended to
avoid causing extensive dam-
age to the electrical system and
possibly a fire.
[EWA15131]
1. Fuse
2. Spare fuse
1
2
U5B682E0.book Page 27 Tuesday, June 9, 2009 2:04 PM
PERIODIC MAINTENANCE AND ADJUSTMENT
7-28
74. Connect the battery coupler.
5. Turn the key to “ON”.
6. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU24350
Supporting the motorcycle Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other maintenance
requiring the motorcycle to stand up-
right. Check that the motorcycle is in a
stable and level position before starting
any maintenance. A strong wooden
box can be placed under the engine for
added stability.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placinga jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
Specified fuse:
10.0 A
U5B682E0.book Page 28 Tuesday, June 9, 2009 2:04 PM
SPECIFICATIONS
9-2
9
Operation:
Left foot operation
Gear ratio:
1st:
38/12 (3.166)
2nd:
33/17 (1.941)
3rd:
29/21 (1.380)
4th:
23/21 (1.095)Chassis:Frame type:
Steel tube backbone
Caster angle:
26.00 °
Trail:
60.0 mm (2.36 in)Front tire:Type:
With tube
Size:
2.50-14 4PR
Manufacturer/model:
CHEN SHIN/C-803-2Rear tire:Type:
With tube
Size:
3.00-12 4PR
Manufacturer/model:
CHEN SHIN/C-803-2
Loading:Maximum rider weight:
60.0 kg (132 lb)Tire air pressure (measured on cold
tires):
Front:
100 kPa (1.00 kgf/cm², 15 psi)
Rear:
100 kPa (1.00 kgf/cm², 15 psi)
Front wheel:Wheel type:
Spoke wheel
Rim size:
14x1.40Rear wheel:Wheel type:
Spoke wheel
Rim size:
12x1.60Front brake:Type:
Drum brake
Operation:
Right hand operationRear brake:Type:
Drum brake
Operation:
Right foot operationFront suspension:Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damperWheel travel:
115.0 mm (4.53 in)
Rear suspension:Type:
Swingarm (monocross)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
110.0 mm (4.33 in)Electrical system:Ignition system:
DC. CDI
Charging system:
AC magnetoBattery:Model:
GT4B-5
Voltage, capacity:
12 V, 2.5 AhFuse:Fuse:
10.0 A
U5B682E0.book Page 2 Tuesday, June 9, 2009 2:04 PM
INDEXAAir filter element, cleaning..................... 7-11BBattery................................................... 7-26
Brake lever .............................................. 4-2
Brake lever, checking and lubricating ... 7-23
Brake lever free play, adjusting............. 7-18
Brake pedal ............................................. 4-3
Brake pedal, checking and
lubricating ........................................... 7-24
Brake pedal free play, adjusting............ 7-19
Brake shoes, checking .......................... 7-20CCables, checking and lubricating .......... 7-23
Carburetor, adjusting ............................ 7-14
Care ........................................................ 8-1
Clutch free play, adjusting..................... 7-17DDrive chain, cleaning and lubricating .... 7-22
Drive chain slack ................................... 7-21EEngine break-in ....................................... 6-3
Engine idling speed............................... 7-14
Engine oil ................................................ 7-9
Engine, starting a warm .......................... 6-2
Engine stop switch .................................. 4-2FFront fork, checking .............................. 7-25
Fuel ......................................................... 4-3
Fuel cock................................................. 4-5
Fuel tank breather hose .......................... 4-5
Fuel tank cap .......................................... 4-3
Fuse, replacing ..................................... 7-27
HHandlebar switches ................................ 4-1IIdentification numbers .......................... 10-1KKey identification number ..................... 10-1
Kickstarter............................................... 4-7LLabels, location....................................... 1-1MMain switch ............................................. 4-1
Maintenance and lubrication, periodic .... 7-4
Maintenance, emission control
system .................................................. 7-3
Matte color, caution ................................ 8-1
Model label ........................................... 10-2PPanels, removing and installing .............. 7-7
Parking ................................................... 6-4
Part locations .......................................... 3-1SSafety information................................... 2-1
Seat ........................................................ 4-7
Shifting.................................................... 6-2
Shift pedal............................................... 4-2
Shift pedal, checking ............................ 7-20
Shock absorber assembly ...................... 4-8
Sidestand................................................ 4-8
Sidestand, checking and lubricating ..... 7-24
Spark arrester, cleaning ....................... 7-13
Spark plug, checking .............................. 7-8
Specifications ......................................... 9-1
Starter (choke) lever ............................... 4-6Starting and warming up
a cold engine ........................................ 6-1
Starting circuit cut-off system .................. 4-8
Start switch.............................................. 4-2
Steering, checking................................. 7-25
Storage.................................................... 8-3
Supporting the motorcycle .................... 7-28
Swingarm pivots, lubricating ................. 7-24
TThrottle cable free play, checking ......... 7-15
Throttle grip and cable, checking and
lubricating ........................................... 7-23
Tires ...................................................... 7-15
Tool kit..................................................... 7-2
Troubleshooting .................................... 7-32
Troubleshooting chart ........................... 7-33VValve clearance..................................... 7-15
Vehicle Emission Control Information
label (For Canada) .............................. 10-2
Vehicle identification number ................ 10-1WWheel bearings, checking ..................... 7-26
Wheel (front) ......................................... 7-29
Wheel (rear) .......................................... 7-30
Wheels .................................................. 7-17
U5B682E0.book Page 1 Tuesday, June 9, 2009 2:04 PM