2004 YAMAHA BEAR TRACKER 250 engine

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:
For Europe: Regular unleaded gasoline only
with a research octane number of 91 or high-
er.
For Australia: Unleaded gasoline only
Fuel tank capacity:
Total: 12 L
Reserve: 1.6 L
U4XE65.book Page 9 Tuesday, May 6, 2003 1:38 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 llenado del depósito de gasolina
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.
U4XE65.book Page 11 Tuesday, May 6, 2003 1:38 PM

5-13
EBU10842
Engine oil
Make sure the engine oil is at the specified level.
Add oil as necessary. (See pages 8-13–8-19.)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 specified. In
addition, do not use oils labeled “ENERGY
CONSERVING II” or higher.


Make sure that no foreign material enters
the crankcase.
_
Recommended engine oil type and quantity:
See page 10-2.
U4XE65.book Page 13 Tuesday, May 6, 2003 1:38 PM

6-3
EBU00501
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.
U4XE65.book Page 3 Tuesday, May 6, 2003 1:38 PM

6-5 1. Fully-open 2. Half open
3. Closed a. Starter (choke)
1. Complètement ouvert 2. Mi-ouvert
3. Ferméa. Starter (enrichisseur)
1. Abre completamente 2. Semiabierto
3. Cerrado a. Starter (choke)
NOTE:

When the transmission is in neutral, the neu-
tral indicator light should come on. If the light
does not come on, ask a Yamaha dealer to
inspect it.


The engine can be started in any gear if the
rear brake lever is applied. However, it is rec-
ommended to shift into neutral before starting
the engine.
_5. Use the starter (choke) in reference to the fig-
ure:
Position
1: Cold engine start-ambient tempera-
ture below 5°C.
Position
2: Cold engine start-ambient tempera-
ture at 0°C–30°C and warming up
position.
Position
3: Cold engine start-ambient tempera-
ture above 25°C and warm engine
start position.
6. Completely close the throttle lever and start
the engine by pushing the start switch.
U4XE65.book Page 5 Tuesday, May 6, 2003 1:38 PM

6-7
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 engine for the first time.
U4XE65.book Page 7 Tuesday, May 6, 2003 1:38 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.
U4XE65.book Page 9 Tuesday, May 6, 2003 1:38 PM

6-15 1. Shift pedal N. Neutral position
1. Pédale de sélection N. Point mort
1. Pedal del cambio N. Punto muerto
EBU02000
Shifting
This model has a 5-speed forward transmission
with centrifugal automatic clutch. The transmission
allows you to control the amount of power you
have available at a given speed or for starting ac-
celerating, climbing, etc. To shift into neutral, re-
turn the throttle lever to its original position and
repeatedly depress the shift pedal until it stops.CAUTION:_ Do not coast for long periods with the engine
off, and do not tow the machine a long dis-
tance. Even with gears in neutral, the transmis-
sion is only properly lubricated when the
engine is running. Inadequate lubrication may
damage the transmission. _
U4XE65.book Page 15 Tuesday, May 6, 2003 1:38 PM