2004 YAMAHA YFM350R light

7-41 1. Lean towards inside of turn.
2. Support your weight on the outer footboard.
1. Se pencher vers l’intérieur du virage.
2. Faire reposer son poids sur le repose-pied externe.
1. Inclínese hacia el interior del giro.
2. Descanse su peso en el descansapie externo.
As you approach a curve, slow down and begin to
turn the handlebars in the desired direction. As
you do so, put your weight on the footboard to the
outside of the turn (opposite your desired direc-
tion) and lean your upper body into the turn. Use
the throttle to maintain an even speed through the
turn. This maneuver will let the wheel on the inside
of the turn slip slightly, allowing the ATV to make
the turn properly.
This procedure should be practiced at slow speed
many times in a large off-road area with no obsta-
cles. If an incorrect technique is used, your ATV
may continue to go straight. If the ATV doesn’t
turn, come to a stop and then practice the proce-
dure again. If the riding surface is slippery or loose,
it may help to position more of your weight over the
front wheels by moving forward on the seat. Once
you have learned this technique you should be
able to perform it at higher speeds or in tighter
curves.
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7-59
CROSSING A SLOPE
Traversing a sloping surface on your ATV requires
you to properly position your weight to maintain
proper balance. Be sure that you have learned the
basic riding skills on flat ground before attempting
to cross a sloping surface. Avoid slopes with slip-
pery surfaces or rough terrain that may upset your
balance.
As you travel across a slope, lean your body in the
uphill direction. It may be necessary to correct the
steering when riding on loose surfaces by pointing
the front wheels slightly uphill. When riding on
slopes be sure not to make sharp turns either up or
down hill.
U5YT60.book Page 59 Friday, December 12, 2003 1:55 PM

8-8 * Since these items require special tools, data and technical skills, have a Yamaha dealer perform the service.
NOTE:

Recommended brake fluid: DOT 4


Brake fluid replacement:
When disassembling the master cylinders or calipers, replace the brake fluid. Normally check the
brake fluid level and add fluid as required.
On the inner parts of the master cylinders and calipers, replace the oil seals every two years.
Replace the brake hoses every four years, or if cracked or damaged.
Steering system*Check operation.
Repair if damaged.
Check toe-in.
Adjust if necessary.Front and rear
suspension*Check operation.
Correct if necessary.Upper and lower arm
pivot and steering shaft*Lubricate every 6 months with lithium-soap-based grease.Rear arm pivot*
Lubricate every 6 months with lithium-soap-based grease.Fittings and fasteners*Check all chassis fittings and fasteners.
Correct if necessary.Lights and switches*Check operation.
Adjust headlight beams.
ITEM ROUTINEINITIAL EVERY
1
month3
months6
months6
months1
year
U5YT60.book Page 8 Friday, December 12, 2003 1:55 PM

8-27 1. Spark plug cap
1. Capuchon de bougie
1. Tapa de bujía
1. Spark plug wrench
1. Clé à bougie
1. Llave de bujía
EBU14550
Spark plug inspection
Removal
1. Remove the spark plug cap.
2. Use the spark plug wrench in the owner’s tool
kit to remove the spark plug as shown.
Inspection
The spark plug is an important engine component
and is easy to inspect. The condition of the spark
plug can indicate the condition of the engine.
The ideal color on the white insulator around the
center electrode is a medium-to-light tan color for
an ATV that is being ridden normally.
Do not attempt to diagnose such problems your-
self.
Instead, take the ATV to a Yamaha dealer. You
should periodically remove and inspect the spark
plug because heat and deposits will cause the
spark plug to slowly break down and erode. If elec-
trode erosion becomes excessive, or if carbon and
other deposits are excessive, you should replace
the spark plug with the specified plug.
Specified spark plug:
DR8EA (NGK)
U5YT60.book Page 27 Friday, December 12, 2003 1:55 PM

8-63 1. Rear brake light switch
2. Rear brake light switch adjusting nut
1. Contacteur de feu stop
2.Écrou de réglage du contacteur de feu stop sur frein arrière
1. Interruptor de la luz de freno trasero
2. Tuerca de ajuste del interruptor de la luz del freno trasera
EBU00833
Adjusting the rear brake light switch
The rear brake light switch, which is activated by
the brake pedal and brake lever, is properly adjust-
ed when the brake light comes on just before brak-
ing 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 direction
a. To
make the brake light come on later, turn the adjust-
ing nut in direction
b.
U5YT60.book Page 63 Friday, December 12, 2003 1:55 PM

8-95 1. Headlight bulb holder cover
1. Cache de la fixation de l’ampoule de phare
1. Cubierta del portabombillas de la bombilla del faro
1. Headlight bulb holder
1. Fixation d’ampoule
1. Porta bombillas del faro
EBU14761
Replacing a headlight bulb
If a headlight bulb burns out, replace it as follows.
1. Remove the headlight bulb holder cover at
the rear of the headlight by pulling it off.
2. Remove the headlight bulb holder by pushing
it inward and turning it counterclockwise.
3. Remove the defective bulb from the headlight
unit by pulling it out.
WARNING
_ A headlight bulb is hot when it is on and imme-
diately 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 touch-
es something flammable. _
U5YT60.book Page 95 Friday, December 12, 2003 1:55 PM

8-97 1. Do not touch the glass part of bulb.
1. Ne pas toucher le verre de l’ampoule.
1. No tocar la parte de cristal de la bombilla.
4. Install a new headlight bulb into the headlight
unit by aligning the projection on the bulb with
the groove in the headlight unit.CAUTION:_ 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 affect-
ed. Thoroughly clean off any dirt and finger-
prints on the headlight bulb using a cloth
moistened with alcohol or thinner. _
U5YT60.book Page 97 Friday, December 12, 2003 1:55 PM

8-99
5. Install the headlight bulb holder by aligning
the projections with the holes in the headlight
unit, pushing it inward, and turning it clock-
wise until it stops.
6. Install the headlight bulb holder cover at the
rear of the headlight.
U5YT60.book Page 99 Friday, December 12, 2003 1:55 PM