engine YAMAHA WOLVERINE 400 2004 Notices Demploi (in French)

5-17
EBU00678
Differential gear oil
Make sure the differential gear oil is at the speci-
fied level. Add oil as necessary. (See pages 8-45–
8-49 for details.)
EBU13160
Coolant
Check the coolant level in the coolant reservoir
when the engine is cold. (The coolant level will
vary with engine temperature.) The coolant level is
satisfactory if it is between the minimum and max-
imum level marks on the coolant reservoir. If the
coolant level is at or below the minimum level
mark, add distilled water to bring the level up to the
maximum level mark. Change the coolant every
two years. (See pages 8-51–8-61 for details.) Recommended oil:
SAE 80 API GL-4 Hypoid gear oil
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5-19
CAUTION:_ Hard water or salt water is harmful to the en-
gine. You may use soft water if you cannot get
distilled water. _
WARNING
_ Wait for the engine and radiator to cool before
removing the radiator cap. You could be
burned by hot fluid and steam blown out under
pressure. Always put a thick rag over the cap
when opening. Allow any remaining pressure
to escape before completely removing the cap. _
EBU01083
Throttle lever
Check to see that the throttle lever operates cor-
rectly. It must open smoothly and spring back to
the idle position when released. Have a Yamaha
dealer repair as necessary for proper operation.Coolant reservoir capacity
(up to the maximum level mark):
0.25 L
U5TE61.book Page 19 Tuesday, May 6, 2003 4:40 PM

6-3
EBU01265
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. Apply the rear brake lever.
2. Turn the fuel cock to “ON”.
3. Turn the main switch to “ON”, and then set
the engine stop switch to “”.
4. Shift the drive select lever into the neutral po-
sition.
U5TE61.book Page 3 Tuesday, May 6, 2003 4:40 PM

6-5 a. Starter (choke)
1. Fully open
2. Half open
3. Closed
a. Starter (enrichisseur)
1. Complètement ouvert
2. Mi-ouvert
3. Fermé
a. Arrancador (estrangulador)
1. Abre completamente
2. Semiabierto
3. Cerrado
NOTE:_ When the drive select lever is in the neutral posi-
tion, the neutral indicator light should come on. If it
does not come on, ask a Yamaha dealer to inspect
the electric circuit. _5. Use the starter (choke) in reference to the fig-
ure:
Position
1: Cold engine start-
ambient temperature below 5°C.
Position
2: Cold engine start-
ambient temperature at 0°C – 30°C
and warming up position.
Position
3: Cold engine start-
ambient temperature above 25°C
and warm engine start position.
6. Completely close the throttle lever and start
the engine by pushing the start switch.
U5TE61.book Page 5 Tuesday, May 6, 2003 4:40 PM

6-7 a. Starter (choke)
1. Fully open
2. Half open
3. Closed
a. Starter (enrichisseur)
1. Complètement ouvert
2. Mi-ouvert
3. Fermé
a. Arrancador (choke)
1. Abre completamente
2. Semiabierto
3. Cerrado
NOTE:_

If the engine fails to start, release the start
switch, then push the start switch again.
Pause a few seconds before the next at-
tempt. Each cranking should be as short as
possible to preserve battery energy. Do not
crank the engine more than 10 seconds on
each attempt.


If the battery is discharged, pull the recoil
starter to start the engine.
_7. If the engine is started with the starter (choke)
in position
1, the starter (choke) should be
returned to position
2 to warm up the en-
gine. If the engine is started with the starter
(choke) in position
2, keep the starter
(choke) in this position to warm up the en-
gine.
8. Continue warming up the engine until it idles
smoothly and return the starter (choke) to po-
sition
3 before riding.CAUTION:_ See the “Engine break-in” section prior to op-
erating the engine for the first time. _
U5TE61.book Page 7 Tuesday, May 6, 2003 4:40 PM

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.
EBU00182
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.
U5TE61.book Page 9 Tuesday, May 6, 2003 4:40 PM

6-13 1. Drive select lever
a. F (Forward)
b. N (Neutral)
c. R (Reverse)
1. Levier de présélection
a. F (Marche avnt)
b. N (Point mort)
c. R (Marche arrière)
1. Palanca de selección de marcha
a. F (Marcha adelante)
b. N (Punto muerto)
c. R (Marcha atrás)
Shifting: reverse
1. Bring the machine to a complete stop and re-
turn the throttle lever to the closed position.
2. Apply the parking brake.
3. Shift the gear from neutral to reverse and vice
versa by moving the drive select lever along
the shift guide.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. _4. Check behind for people or obstacles, then
release the parking brake.
5. Open the throttle lever gradually and contin-
ue to watch to the rear while backing.NOTE:_ If the drive select lever is shifted into reverse while
the engine is running, the engine will stop unless
the parking brake or rear brake lever is applied. _
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6-17
EBU02101
Engine break-in
There is never a more important period in the life of
your machine than the period between zero and
20 hours.
For this reason, we ask that you carefully read the
following material. Because the engine is brand
new, you must not put an excessive load on it for
the first several hours of running. During the first
20 hours, the various parts in the engine wear and
polish themselves to the correct operating clear-
ances.
During this period, prolonged full throttle operation
or any condition which might result in excessive
engine heating must be avoided. However, mo-
mentary (2–3 seconds maximum) full throttle oper-
ation under load does not harm the engine.
Each full throttle acceleration sequence should be
followed with a substantial rest period for the en-
gine by cruising at lower r/min so the engine can
rid itself of the temporary build up of heat. If any
abnormality is noticed during this period, consult a
Yamaha dealer.
U5TE61.book Page 17 Tuesday, May 6, 2003 4:40 PM

6-19
0–10 hours:
Avoid continuous operation above half throttle. Al-
low a cooling off period of five to ten minutes after
every hour of operation. Vary the speed of the ma-
chine from time to time. Do not operate it at one
set throttle position.
10–20 hours:
Avoid prolonged operation above 3/4 throttle. Rev
the machine freely but do not use full throttle at any
time.
After break-in:
Avoid prolonged full throttle operation. Vary
speeds occasionally.
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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6-21
EBU13760
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, place the machine transversely across
the incline, 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 easi-
ly. _1. Bring the machine to a stop by applying the
brakes.
2. Stop the engine.
3. With the rear brake lever and pedal applied,
apply the parking brake, and then slowly re-
lease the brake pedal.
U5TE61.book Page 21 Tuesday, May 6, 2003 4:40 PM