Page 14 of 400

Cooling system ...................................8-23
Spark plug inspection .........................8-39
Air filter element cleaning ...................8-43
Carburetor settings .............................8-51
Idle speed adjustment ........................8-67
Throttle lever adjustment ....................8-71
Front and rear brake pad
inspection .........................................8-73
Brake fluid level check ........................8-75
Brake fluid replacement ......................8-79
Front brake lever free play .................8-81
Brake pedal height adjustment ...........8-83
Parking brake adjustment ...................8-85
Adjusting the rear brake light switch ...8-89
Clutch adjustment ...............................8-91
Drive chain slack check ......................8-91
Drive chain slack adjustment ..............8-93
Lubricating the drive chain .................8-95
Cable inspection and lubrication ........8-99Brake and shift pedal/brake and
clutch lever lubrication ....................8-101
Lubricating the front upper and
lower arm pivots .............................8-101
Rear arm pivot lubrication ................8-103
Wheel removal .................................8-105
Wheel installation .............................8-105
Replacing the headlight bulb ............8-107
Headlight beam adjustment ..............8-111
Tail/brake light bulb replacement .....8-113
Troubleshooting ................................8-115
Troubleshooting chart.......................8-119
CLEANING AND STORAGE ...................9-1
A. Cleaning ...........................................9-1
B. Storage ............................................9-7
SPECIFICATIONS .................................10-1
10
9
Page 352 of 400
8-107
EBU16000
Replacing a headlight bulb
If a headlight bulb burns out, replace the bulb as
follows.
1. Remove the screw holding the headlight
unit assembly to the headlight body.
2. Remove the bulb holder cover.
q
1. Screw
1. Vis
1. Tornillo
1
1. Bulb holder cover
1. Cache de la douille d’ampoule
1. Cubierta del portabombillas
Page 354 of 400

3. Turn the bulb holder counterclockwise to
remove the defective bulb.
w
A headlight bulb is hot when it is on and
immediately after it is turned off. Wait for the
bulb to cool before touching or removing it.
You can be burned, or a fire could start if the
bulb touches something flammable.
4. Put a new headlight bulb into position and
secure it in place with the bulb holder.
cC
Do not touch the glass part of the headlight
bulb to keep it free from oil, otherwise the
transparency of the glass, the luminosity of
the bulb, and the bulb life will be adversely
affected. Thoroughly clean off any dirt and
fingerprints on the headlight bulb using a
cloth moistened with alcohol or thinner.
5. Install the bulb holder cover.
1
e qw
r
1. Bulb holder
1. Douille d’ampoule
1. Portabombillas
1. Bulb holder cover 2. Bulb holder
3. Reflector
4. Do not touch the glass part of the bulb.
1. Cache de la douille d’ampoule 2. Douille d’ampoule
3. Réflecteur
4. Ne pas toucher le verre de l’ampoule.
1. Cubierta del portabombillas 2. Portabombillas
3. Reflector
4. Ne tocar la parte de cristal de la bombilla.
8-109
Page 356 of 400
8-111
EBU01089
Headlight beam adjustment
cC
It is advisable to have a Yamaha dealer make
this adjustment.
To raise the beam, turn the adjusting screw in
directiona.
To lower the beam, turn the adjusting screw in
directionb.b
1
a
1. Adjusting screw
1. Vis de réglage
1. Tornillo de ajuste
cC
Make sure the bulb holder cover is securely
fitted over the bulb holder and seated
against the reflector.
6. Install the headlight unit assembly.
7. Adjust the headlight beam if necessary.
Page 384 of 400
10-5
Model YFZ350
Suspension:
Front suspension Double wishbone
Rear suspension Swingarm (link suspension)
Shock absorber:
Front shock absorber Coil spring/Oil damper
Rear shock absorber Coil spring/Gas-oil damper
Wheel travel:
Front wheel travel 230 mm
Rear wheel travel 220 mm
Electrical:
Ignition system C.D.I.
Generator system A.C. magneto
Headlight type: Krypton bulb
Bulb voltage, wattage ×quantity:
Headlight 12V, 30 W/30 W ×2
Tail/brake light 12V, 5 W/21 W ×1