Page 410 of 452
8-137 1. Tail/brake light unit 2. Tail/brake light bulb holder
1. Bloc du feu arrière/stop
2. Fixation d’ampoule de feu arrière/stop
1. Unidad de la luz de cola/freno
2. Portalámparas de la luz de freno/piloto trasero
1. Tail/brake light bulb holder 2. Bulb
1. Fixation d’ampoule de feu arrière/stop 2. Ampoule
1. Portalámparas de la luz de freno/piloto trasero 2. Bombilla
2. Remove the bulb holder (together with the
bulb) by turning it counterclockwise.
3. Remove the defective bulb from the bulb
holder by pushing it inward and turning it
counterclockwise.
4. Install a new bulb in the bulb holder by push-
ing it inward and turning it clockwise.
5. Install the bulb holder (together with the bulb)
by turning it clockwise.
6. Install the washers, and then install the nuts.
EE.book Page 137 Wednesday, May 11, 2005 1:21 PM
Page 412 of 452

8-139
EBU00413
Troubleshooting
Although Yamaha machines receive a rigid in-
spection before shipment from the factory, trouble
may occur during operation.
Any problem in the fuel, compression, or ignition
systems can cause poor starting and loss of pow-
er. The troubleshooting chart describes a quick,
easy procedure for making checks. If your ma-
chine requires any repair, take it to a Yamaha
dealer.
The skilled technicians at a Yamaha dealership
have the tools, experience, and know-how to prop-
erly service your machine. Use only genuine
Yamaha parts on your machine. Imitation parts
may look like Yamaha parts, but they are often in-
ferior. Consequently, they have a shorter service
life and can lead to expensive repair bills.
WARNING
Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe in-
jury or property damage. Make sure there are
no open flames or sparks in the area, including
pilot lights from water heaters or furnaces.
EE.book Page 139 Wednesday, May 11, 2005 1:21 PM
Page 428 of 452
9-9
5. Tie a plastic bag over the exhaust pipe outlet
to prevent moisture from entering.
6. If storing in a humid or salt-air atmosphere,
coat all exposed metal surfaces with a light
film of oil. Do not apply oil to any rubber parts
or the seat cover.
7. Remove the battery and charge it. Store it in
a dry place and recharge it once a month. Do
not store the battery in an excessively warm
or cold place (less than 0°C or more than
30°C).NOTE:Make any necessary repairs before storing the
machine.
EE.book Page 9 Wednesday, May 11, 2005 1:21 PM
Page 434 of 452
10-5
Brake:
Front brake type Dual disc brake
operation Right hand operation
Rear brake type Single disc brake
operation Left hand and right foot operation
Suspension:
Front suspension Double wishbone
Rear suspension Double wishbone
Shock absorber:
Front shock absorber Coil spring / oil damper
Rear shock absorber Coil spring / oil damper
Wheel travel:
Front wheel travel 160.0 mm
Rear wheel travel 180.0 mm
Electrical:
Ignition system DC-C.D.I.
Generator system A.C. magneto
Battery type YTX20L-BS
Battery voltage, capacity 12 V 18.0 Ah
Headlight type: Halogen bulbModelYFM450FAV
EE.book Page 5 Wednesday, May 11, 2005 1:21 PM
Page 435 of 452
10-6
Bulb voltage, wattage
× quantity:
Headlight 12 V 30 W/30 W
× 2
Tail/brake light 12 V 5 W/21 W
× 1
Neutral indicator light LED
Reverse indicator light LED
Coolant temperature warning light LED
Park indicator light LED
High-range indicator light LED
Low-range indicator light LED
Differential gear lock indicator light LED
Fuse:
Main fuse 30.0 A
Headlight fuse 15.0 A
Ignition fuse 10.0 A
Auxiliary DC jack fuse 10.0 A
Four-wheel-drive fuse 3.0 A
Signaling system fuse 10.0 A
Backup fuse 10.0 AModelYFM450FAV
EE.book Page 6 Wednesday, May 11, 2005 1:21 PM