Page 312 of 400
8-67
EBU03021
Idle speed adjustment
NOTE:
A diagnostic tachometer must be used for this
procedure.
NOTE:
The throttle cables and carburetor synchroniza-
tion must be set properly before adjusting the
idle speed.
1. Adjust the pilot air screws.
8Turn in both pilot air screws until they
lightly seat.
8Turn out both pilot air screws to specifi-
cation. (Refer to the “Carburetor settings”
section.)
2. Remove the seat.
3. Start the engine and warm it up for a few
minutes at approximately 1,000 to 2,000
r/min.
q
1. Pilot air screw
1. Vis d’air de ralenti
1. Tornillo de aire piloto
Page 334 of 400
8-89
EBU00833
Adjusting the rear brake light switch
The rear brake light switch, which is activated by
the brake pedal and brake lever, is properly
adjusted when the brake light comes on just
before braking takes effect. If necessary, adjust
the brake light switch as follows.
Turn the adjusting nut while holding the rear
brake light switch in place. To make the brake
light come on earlier, turn the adjusting nut in
directiona. To make the brake light come on
later, turn the adjusting nut in direction b.1
2
a
b
1. Rear brake light switch
2. Adjusting nut
1. Contacteur de feu stop sur frein arrière
2. Écrou de réglage
1. Interruptor de la luz de freno trasero
2. Tuerca de ajuste
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 358 of 400
8-113
EBU00861
Tail/brake light bulb replacement
1. Remove the bulb holder (together with the
bulb) by turning it counterclockwise.
2. Remove the defective bulb from the bulb
holder by pushing it inward and turning it
counterclockwise.
3. Install a new bulb in the bulb holder by
pushing it inward and turning it clockwise.
4. Install the bulb holder (together with the
bulb).
1
q
w
1. Bulb holder
1. Fixation d’ampoule
1. Portabombillas
1. Bulb holder 2. Bulb
1. Fixation d’ampoule 2. Ampoule
1. Portabombillas 2. Bombilla
Page 362 of 400
8-117
w
Do not smoke when checking the fuel sys-
tem. Fuel can ignite or explode, causing
severe injury or property damage. Make sure
there are no open flames or sparks in the
area, including pilot lights from water
heaters or furnaces.
Page 378 of 400
9-9
5. Block up the frame to raise all wheels off
the ground.
6. Tie a plastic bag over the exhaust pipe out-
let to prevent moisture from entering.
7. 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.
NOTE:
Make any necessary repairs before storing the
machine.