
PERIODIC MAINTENANCE AND MINOR REPAIR
6-30
6
EAU25891
Troubleshooting chart
WARNING
EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Open the throttle halfway and operate
the electric starter.
U5C4E0E0.book Page 30 Monday, March 13, 2006 10:29 AM

SPECIFICATIONS
8-2
8
Caster angle:
30.90 °
Trail:
152.0 mm (5.98 in)Front tire:Type:
Tubeless
Size:
130/70R18M/C 63H
Manufacturer/model:
DUNLOP/D251FRear tire:Type:
Tubeless
Size:
190/60R17M/C 78H
Manufacturer/model:
DUNLOP/D251Loading:Maximum load:
204 kg (450 lb)
(Total weight of rider, passenger, cargo and
accessories)Tire air pressure (measured on cold
tires):Loading condition:
0–90 kg (0–198 lb)
Front:
250 kPa (36 psi) (2.50 kgf/cm²)
Rear:
280 kPa (41 psi) (2.80 kgf/cm²)
Loading condition:
90–204 kg (198–450 lb)Front:
250 kPa (36 psi) (2.50 kgf/cm²)
Rear:
280 kPa (41 psi) (2.80 kgf/cm²)
High-speed riding:
Front:
250 kPa (36 psi) (2.50 kgf/cm²)
Rear:
280 kPa (41 psi) (2.80 kgf/cm²)
Front wheel:Wheel type:
Cast wheel
Rim size:
18M/C x MT4.00Rear wheel:Wheel type:
Cast wheel
Rim size:
17M/C x MT5.50Front brake:Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4Rear brake:Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4
Front suspension:Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
130.0 mm (5.12 in)Rear suspension:Type:
Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
110.0 mm (4.33 in)Electrical system:Ignition system:
Transistorized coil ignition (digital)
Charging system:
AC magnetoBattery:Model:
GT14B-4
Voltage, capacity:
12 V, 12.0 AhHeadlight:Bulb type:
Halogen bulbBulb voltage, wattage × quantity:Low beam headlight:
12 V, 51.0 W × 1
High beam headlight:
12 V, 55.0 W × 1
Tail/brake light:
LED
U5C4E0E0.book Page 2 Monday, March 13, 2006 10:29 AM

SPECIFICATIONS
8-3
8
Front turn signal light:
12 V, 21.0 W × 2
Rear turn signal light:
12 V, 21.0 W × 2
Auxiliary light:
12 V, 5.0 W × 2
License plate light:
12 V, 5.0 W
Meter lighting:
LED
Neutral indicator light:
LED
High beam indicator light:
LED
Turn signal indicator light:
LED
Fuel level warning light:
LED
Engine trouble warning light:
LED
Immobilizer system indicator light:
LEDFuses:Main fuse:
50.0 A
Headlight fuse:
20.0 A
Signaling system fuse:
10.0 A
Ignition fuse:
25.0 A
Parking lighting fuse:
10.0 AECU fuse:
10.0 A
Fuel injection system fuse:
15.0 A
Auxiliary DC connector fuse:
3.0 A
Backup fuse:
10.0 A
U5C4E0E0.book Page 3 Monday, March 13, 2006 10:29 AM

INDEXAAir filter element ...................................... 6-9
Anti-theft alarm (optional)........................ 3-9
Auxiliary DC connector ......................... 3-21
Auxiliary light bulb, replacing ................ 6-28BBattery................................................... 6-21
Brake and clutch fluid levels,
checking ............................................. 6-15
Brake and clutch fluids, changing ......... 6-16
Brake and clutch levers,
checking and lubricating ..................... 6-18
Brake and shift pedals,
checking and lubricating ..................... 6-18
Brake lever ............................................ 3-11
Brake pedal ........................................... 3-12CCables, checking and lubricating .......... 6-17
Care ........................................................ 7-1
Catalytic converter ................................ 3-14
Clutch lever .................................. 3-11, 6-13DDimmer switch ...................................... 3-10
Drive belt slack...................................... 6-16EEngine break-in ....................................... 5-3
Engine oil and oil filter cartridge .............. 6-6
Engine stop switch ................................ 3-10
Engine trouble warning light.................... 3-4
EXUP system ........................................ 3-18FFront and rear brake pads, checking .... 6-14
Front fork, checking .............................. 6-20
Fuel ....................................................... 3-13Fuel consumption, tips for reducing........ 5-3
Fuel level warning light ........................... 3-4
Fuel tank breather hose........................ 3-14
Fuel tank cap ........................................ 3-12
Fuses, replacing ................................... 6-23
HHandlebar switches .............................. 3-10
Hazard switch ....................................... 3-10
Headlight bulb, replacing ...................... 6-24
Helmet holder ....................................... 3-15
High beam indicator light ........................ 3-4
Horn switch ........................................... 3-10IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-19
Immobilizer system ................................. 3-1
Immobilizer system indicator light........... 3-4
Indicator and warning lights .................... 3-3KKey identification number ....................... 9-1LLicense plate light ................................. 6-28MMain switch/steering lock........................ 3-2
Model label ............................................. 9-2
Multi-function meter unit ......................... 3-5NNeutral indicator light .............................. 3-3PParking ................................................... 5-4
Part locations .......................................... 2-1
Periodic maintenance and lubrication
chart ..................................................... 6-2
Pre-operation check list .......................... 4-2
RRear brake light switch, adjusting ......... 6-14
Rear suspension, lubricating ................. 6-19
Rider seat .............................................. 3-14SSafety information ................................... 1-1
Shifting .................................................... 5-2
Shift pedal ............................................. 3-11
Shock absorber assembly, adjusting .... 3-16
Sidestand .............................................. 3-18
Sidestand, checking and lubricating...... 6-19
Spark plugs, checking ............................. 6-5
Specifications .......................................... 8-1
Starting the engine .................................. 5-1
Start switch............................................ 3-10
Steering, checking................................. 6-20
Storage.................................................... 7-3
Supporting the motorcycle .................... 6-29TTail/brake light ....................................... 6-27
Throttle cable free play, checking ......... 6-10
Throttle grip and cable, checking
and lubricating .................................... 6-17
Tires ...................................................... 6-10
Tool kit..................................................... 6-1
Transfer case oil...................................... 6-9
Troubleshooting .................................... 6-29
Troubleshooting chart ........................... 6-30
Turn signal indicator lights ...................... 3-3
Turn signal light bulb, replacing ............ 6-27
Turn signal switch ................................. 3-10VValve clearance..................................... 6-10
Vehicle identification number .................. 9-1
U5C4E0E0.book Page 1 Monday, March 13, 2006 10:29 AM