brake YAMAHA WARRIOR 350 2003 User Guide

5-5
EBU00948*
Front and rear brakes
Brake lever and brake pedal

Check that there is no free play in the brake le-
ver. If there is free play, have a Yamaha dealer
adjust it. Check for correct brake pedal height.
If the pedal height is incorrect, have a Yamaha
dealer adjust it. (See pages 8-47 ~ 8-49.)


Check the operation of the lever and pedal.
They should move smoothly and there should
be a firm feeling when the brakes are applied. If
not, have the machine inspected by a Yamaha
dealer.
Brake fluid level


Check the brake fluid level. Add fluid if neces-
sary. (See pages 8-41 ~ 8-45.)
Recommended brake fluid: DOT 4
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5-7
Brake fluid leakage

Check to see if any brake fluid is leakage out of
the pipe joints or master cylinders. Apply the
brakes firmly for one minute. If there is any
leakage, have the machine inspected by a
Yamaha dealer.
Brake operation


Test the brakes at slow speed after starting out
to make sure they are working properly. If the
brakes do not provide proper braking perfor-
mance, inspect the brake pads for wear. (See
page 8-39.)WARNING
_ Always check the brakes at the start of every
ride. Do not ride the ATV if you find any prob-
lem with the brakes or you could lose braking
ability, which could lead to an accident. If a
problem cannot be corrected by the adjust-
ment procedures provided in this manual,
have the ATV inspected by a Yamaha dealer. _
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5-17
EBU00151
Throttle lever
Check to see that the throttle lever operates cor-
rectly. It must open smoothly and spring back to
idle position when released. Repair as necessary
for proper operation.
EBU00152
Fittings and Fasteners
Always check the tightness of chassis fittings and
fasteners before a ride. Take the machine to a
Yamaha dealer or refer to the Service Manual for
correct tightening torque.
EBU00803*
Lights
Check the headlights and tail/brake light to make
sure they are in working condition. Repair as nec-
essary for proper operation.
EBU00912
Switches
Check the operation of the light switch, engine
stop switch and any other switches. Repair as nec-
essary for proper operation.
U5NF61.book Page 17 Wednesday, June 13, 2001 5:18 PM

6-3
EBU00514
Starting a cold engine
WARNING
_ Always make sure all control cables work
smoothly before you begin riding in cold
weather. If the control cables are frozen or do
not work smoothly, you could be unable to
control the ATV, which could lead to an acci-
dent or collision. _ 1. Set the parking brake.
2. Turn the fuel cock to “ON”.
3. Turn the main switch to “ON” and the engine
stop switch to “RUN”.
4. Shift the transmission into neutral.
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6-9
EBU00180
Starting a warm engine
To start a warm engine, refer to the “Starting a cold
engine” section. The starter (choke) should not be
used. The throttle should be opened slightly.
EBU00538
Warming up
To get maximum engine life, always warm up the
engine before starting off. Never accelerate hard
with a cold engine! To see whether or not the en-
gine is warm, check if it responds to the throttle
normally with the starter (choke) turned off.NOTE:When the parking brake is used, engine speed is
limited to 2,300 r/min. Be sure the parking brake is
released before moving the throttle lever. Other-
wise, the engine will misfire, preventing normal op-
eration.
U5NF61.book Page 9 Wednesday, June 13, 2001 5:18 PM

6-11 1. Drive select lever
2. Knob
3. For forward drive
4. For reverse drive
1. Levier de présélection
2. Bouton
3. Conduite en marche avant
4. Conduite en marche arrière
1. Palanca de selección de gama
2. Botón
3. Para marcha adelante
4. Para marcha atrás
EBU00188
Drive select lever operation and reverse driv-
ingCAUTION:
Before shifting, stop the machine and return
the throttle lever to its closed position. Other-
wise the transmission may be damaged.NOTE:When shifting into reverse, the clutch must be dis-
engaged.1. Bring the machine to a complete stop and re-
turn the throttle lever to the closed position.
2. Pull in the clutch lever to disengage the
clutch.
3. Apply the rear brake pedal.
4. While pulling the knob, move the drive select
lever toward the rear until it completely stops.NOTE:When in reverse, the reverse indicator light should
be on. If the light does not come on, ask a Yamaha
dealer to inspect the machine.
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6-13
5. Check behind you for people or obstacles,
then release the rear brake pedal.
6. Open the throttle lever gradually and release
the clutch lever slowly. Continue to watch to
the rear while backing.
WARNING
Improper operation in reverse could make you
hit an obstacle or person behind you, resulting
in serious injury. When you shift into reverse,
make sure there are no obstacles or people be-
hind you. When it is safe to proceed, go slowly.
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6-21
EBU00208
To decelerate:
When slowing down or stopping, release the throt-
tle and apply the brakes smoothly and evenly. As
you slow down, shift to a lower gear. Be sure that
the engine has sufficiently slowed before engaging
a lower gear. Improper use of the brakes or shift-
ing can cause the tires to lose traction, reducing
control and increasing the possibility of an acci-
dent.
WARNING
Make sure the engine has sufficiently slowed
before shifting to a lower gear. Engaging a low-
er gear when the engine speed is too high
could make the wheels stop rotating. This
could cause loss of control, an accident and
injury. It could also cause engine or drive train
damage.
U5NF61.book Page 21 Wednesday, June 13, 2001 5:18 PM

6-27 1. Button 2. Lock plate
1. Bouton 2. Verrou
1. Botón 2. Placa de bloqueo
1. Locked position
1. Position verrou bloqué
1. Posición bloqueada
EBU00211
Parking
When parking, stop the engine and shift into neu-
tral. Turn the fuel cock to “OFF” and apply the
parking brake.
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6-29
EBU00214*
Parking on a slope
WARNING
Avoid parking on hills or other inclines. Park-
ing on a hill or other incline could cause the
ATV to roll out of control, increasing the
chance of an accident. If you must park on an
incline, put the machine in low gear, apply the
parking brake, and block the front and rear
wheels with rocks or other objects.
Do not park the ATV at all on hills that are so
steep you could not walk up them easily.1. Bring the machine to a stop by applying the
brakes in low gear.
2. Stop the engine and release the clutch lever.
3. With the front and rear brakes applied, apply
the parking brake and slowly release the
brake pedal.
U5NF61.book Page 29 Wednesday, June 13, 2001 5:18 PM