engine YAMAHA YFM350R 2003 Notices Demploi (in French)

4-17 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
EBU00081
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 lever. Other-
wise, the engine will misfire, preventing normal op-
eration.
U5NF62.book Page 17 Wednesday, May 8, 2002 1:40 PM

4-19
WARNING


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.


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.
U5NF62.book Page 19 Wednesday, May 8, 2002 1:40 PM

4-21 1. Shift pedal
1. Pédale de sélection
1. Pedal del cambio
1. Drive select lever
1. Levier de présélection
1. Palanca de selección de gama
EBU00082
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 combina-
tion with the clutch when shifting.
EBU00085
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.
U5NF62.book Page 21 Wednesday, May 8, 2002 1:40 PM

4-23 1. Fuel tank cap
1. Bouchon de réservoir de carburant
1. Tapón del depósito de combustible
EBU00092
Fuel tank cap
Remove the fuel tank cap by turning it counter-
clockwise.
EBU00093
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 refuelling, re-
turn the fuel cock lever to the “ON” position.
U5NF62.book Page 23 Wednesday, May 8, 2002 1:40 PM

4-25 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
EBU00094
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 opera-
tion. (See page 6-3.)
U5NF62.book Page 25 Wednesday, May 8, 2002 1:40 PM

5-1
EBU00113
PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
BrakesCheck operation, fluid level and fluid leakage.
Fill with DOT 4 brake fluid if necessary.5-5–5-7,
8-41–8-51
ClutchCheck operation, condition and lever free play. 8-59
Parking brakeCheck operation, condition and cable length. 8-53–8-55
FuelCheck fuel level.
Fill with fuel if necessary.5-9–5-11
Engine oilCheck oil level.
Fill with oil if necessary.5-13–5-15,
8-15–8-23
Drive chainCheck chain slack and condition.
Adjust if necessary.5-15, 8-61–8-65
ThrottleCheck for proper throttle cable operation and free play. 5-17, 8-39
Wheels and tiresCheck tire pressure, wear and damage.5-19–5-25,
8-73–8-75
Fittings and fastenersCheck all fittings and fasteners. 5-17
Lights and switchesCheck for proper operation. 5-17, 8-57, 8-87–8-97
BatteryCheck fluid level.
Fill with distilled water if necessary.5-19, 8-77–8-83
U5NF62.book Page 1 Wednesday, May 8, 2002 1:40 PM

5-9
EBU00998*
Fuel
Make sure there is sufficient gasoline in the tank.NOTE:_ (for Europe only)
If knocking or pinging occurs, use a different brand
of gasoline or higher octane grade. _CAUTION:_ Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts, such as the valves and piston
rings, as well as to the exhaust system. _
Recommended fuel:
Unleaded gasoline only
For Europe: Regular unleaded gasoline
only with a research octane
number of 91 or higher
Fuel tank capacity:
Total:
9.0 L
Reserve:
1.9 L
U5NF62.book Page 9 Wednesday, May 8, 2002 1:40 PM

5-11 1. Fuel tank filler tube
2. Fuel level
1. Tube de remplissage du réservoir de carburant
2. Niveau de carburant
1. Tubo de relleno del depósito de combustible
2. Nivel de combustible
WARNING
_

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.


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.


Do not refuel right after the engine has
been running and is still very hot.


Be sure the fuel tank cap is closed secure-
ly.
_
U5NF62.book Page 11 Wednesday, May 8, 2002 1:40 PM

5-13
EBU01180
Engine oil
Make sure the engine oil is at the specified level.
Fill with oil as necessary. (See pages 8-15–8-23
for details.)
Recommended oil:
Recommended engine oil classification:
API Service SE, SF, SG type or higher
-20˚ -10˚ 0˚
10˚20˚ 30˚40˚50˚C
10W/30
15W/4020W/4020W/50
10W/40
5W/30
U5NF62.book Page 13 Wednesday, May 8, 2002 1:40 PM

5-15
CAUTION:_

In order to prevent clutch slippage (since
the engine oil also lubricates the clutch),
do not mix any chemical additives. Do not
use oils with a diesel specification of
“CD” or oils of a higher quality than spec-
ified. In addition, do not use oils labeled
“ENERGY CONSERVING II” or higher.


Make sure that no foreign material enters
the crankcase.
_
EBU00498
Chain
Check the general condition of the chain and check
the chain slack before every ride. Lubricate and ad-
just the chain as necessary. (See pages 8-61–8-65
for details.)Oil quantity:
Periodic oil change:
2.4 L
With oil filter element replacement:
2.5 L
Total amount:
3.2 L
U5NF62.book Page 15 Wednesday, May 8, 2002 1:40 PM