engine YAMAHA WARRIOR 350 2001 User Guide

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Clutch lever
The clutch lever is located on the left handlebar
and the ignition circuit cut-off system is incor-
porated in the clutch lever holder. Pull the
clutch lever to the handlebar to disengage the
clutch, and release the lever to engage the
clutch. The lever should be pulled rapidly and
released slowly for smooth clutch operation.
(Refer to “Starting a cold engine” for a descrip-
tion of the ignition circuit cut-off system.)
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Front brake lever
The front brake lever is located on the right
handlebar. Pull it toward the handlebar to ap-
ply the front brake.
1. Clutch lever
1. Levier d’embrayage
1. Palanca de embrague
1. Front brake lever
1. Levier de frein avant
1. Palanca del freno delantero

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Parking brake
Use the parking brake when you have to start
the engine or park the machine, especially on a
slope. Squeeze the clutch lever while pushing
the button, then push in the lock plate to apply
the parking brake. Squeeze the clutch lever to
release the parking brake.
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 le-
ver. Otherwise, the engine will misfire, pre-
venting normal operation.
1. Button 2. Lock plate
1. Bouton 2. Verrou
1. Botón 2. Placa de bloqueo
1. Lock position
1. Position bloquée
1. Posición de bloqueo

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WARNING

l
Always set the parking brake before start-
ing the engine. The ATV could start mov-
ing unexpectedly if the parking brake is
not applied. This could cause loss of con-
trol or a collision.
l
Always be sure you have released the
parking brake before you begin to ride.
The brake could overheat if you ride the
ATV without releasing the parking brake.
You could lose braking performance
which could cause an accident. You could
also wear out the brakes prematurely.

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Shift pedal
This machine is equipped with a constant-
mesh 6-speed transmission. The shift pedal is
located on the left side of the engine and is
used in combination with the clutch when
shifting.
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Drive select lever
The drive select lever is used for driving the
machine either forward or in reverse. Refer to
page 6-11 for drive select lever operation.
1. Shift pedal N. Neutral
1. Pédale de sélection N. Point mort
1. Pedal del cambio N. Punto muerto
1. Drive select lever
1. Levier de présélection
1. Palanca de selección de gama

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Fuel tank cap
Remove the fuel tank cap by turning it counter-
clockwise.
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Fuel cock
The fuel cock supplies fuel from the fuel tank to
the carburetor.
The fuel cock has three positions.
OFF: With the lever in this position fuel will
not flow. Always turn the lever to this
position when the engine is not running.
ON: With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.
RES: This indicates reserve. If you run out of
fuel while riding, turn the lever to this
position. THEN FILL THE FUEL TANK AT
THE FIRST OPPORTUNITY. After refuel-
ling, return the fuel cock lever to the
“ON” position.
1. Fuel tank cap
1. Bouchon de réservoir de carburant
1. Tapón del depósito de combustible

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Starter (choke)
Starting a cold engine requires a richer air-fuel
mixture.
A separate starter circuit supplies this mixture.
Move in direction
a
to turn on the starter
(choke).
Move in direction
b to turn off the starter
(choke).
Refer to “Starting a cold engine” for proper op-
eration. (See page 6-3.)
A. Starter (choke) 1. Fully open
2. Half open 3. Closed
A. Starter (enrichisseur) 1. Complètement ouvert
2. Mi-ouvert 3. Fermé
A. Starter (choke) 1. Abre completamente
2. Semiabierto 3. Cerrado

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PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
Brake
• Check operation, free play, fluid level and fluid leakage.
• Fill with DOT 4 (or DOT 3) brake fluid if necessary.5-5 ~ 5-7,
8-39 ~ 8-49
Clutch
• Check operation, condition and lever free play. 8-55
Parking brake
• Check operation, condition and cable slack. 8-51 ~ 8-53
Fuel
• Check fuel level.
• Fill with fuel if necessary.5-9 ~ 5-11
Engine oil
• Check oil level.
• Fill with oil if necessary.5-13 ~ 5-15,
8-15 ~ 8-23
Drive chain
• Check chain slack and condition.
• Adjust if necessary.5-15, 8-57 ~ 8-61
Throttle
• Check for proper throttle cable operation. 5-17, 8-37
Wheels and tires
• Check tire pressure, wear and damage.5-19 ~ 5-25,
8-69 ~ 8-71
Fittings and Fasteners
• Check all fittings and fasteners. 5-17
Lights
• Check for proper operation. 5-17, 8-83 ~ 8-89
Battery
• Check fluid level.
• Fill with distilled water if necessary.5-19, 8-73 ~ 8-79

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1. Filler tube 2. Fuel level
1. Tube de remplissage 2. Niveau de carburant
1. Tubo de llenado 2. Nivel de combustible
WARNING

l
Do not overfill the fuel tank. Fuel expands
when it heats up. If the fuel tank is over-
filled, fuel could spill out due to heat from
the engine or the sun.
l
Be careful not to spill fuel, especially on
the engine or exhaust pipe which can
cause a fire and severe injury. Wipe up
any spilled fuel immediately.
l
Do not refuel right after the engine has
been running and is still very hot.
l
Be sure the fuel tank cap is closed secure-
ly.

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Engine oil
Make sure the engine oil is at the specified lev-
el. Fill with oil as necessary. (See pages 8-15 ~
8-23 for details.)
Temp.
-20°
-10°0°10°20°30°40°
50°C
5W/30
10W/30
10W/40
20W/50
15W/4020W/40

Recommended oil:
Recommended engine oil classification:
API Service SE, SF, SG type or higher

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CAUTION:

Be sure to use motor oils that do not contain
anti-friction modifiers. Passenger car motor
oils (often labeled “Energy Conserving”) con-
tain anti-friction additives which will cause
clutch and/or starter clutch slippage, resulting
in reduced component life and poor engine
performance.
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Chain
Check the general condition of the chain and
check the chain slack before every ride. Lubri-
cate and adjust the chain as necessary. (See
pages 8-57 ~ 8-61 for details.)Oil quantity:
Total amount:
3.2 L
Periodic oil change:
2.4 L
With oil filter replacement:
2.5 L