2003 YAMAHA BEAR TRACKER 250 oil filter

OPERATION ...........................................6-1
Starting a cold engine ...........................6-3
Starting a warm engine ........................6-9
Warming up ..........................................6-9
Drive select lever operation and
reverse driving .................................6-11
Shifting ...............................................6-15
To start out and accelerate: ................6-17
To decelerate: ....................................6-19
Engine break-in ..................................6-21
Parking ...............................................6-23
Parking on a slope .............................6-25
Accessories and loading ....................6-27
RIDING YOUR ATV..................................7-1
Getting to know your ATV .....................7-3
Ride with care and good
judgement ...........................................7-5
Be careful where you ride ...................7-27
Turning your ATV ................................7-41
Climbing uphill.....................................7-47
Riding downhill ....................................7-57
Crossing a slope .................................7-61
Crossing through shallow water ..........7-65
Riding over rough terrain ....................7-69
Sliding and skidding ............................7-71
67
What to do if ....................................... 7-75
What to do .......................................... 7-75
PERIODIC MAINTENANCE AND
ADJUSTMENT ......................................... 8-1
Owner’s manual and tool kit ................. 8-3
Periodic maintenance/lubrication ......... 8-7
Engine oil ............................................ 8-13
Final gear oil ....................................... 8-21
Spark plug inspection ......................... 8-27
Air filter cleaning ................................. 8-31
Carburetor adjustment ....................... 8-37
Idle speed adjustment ....................... 8-39
Valve clearance adjustment .............. 8-41
Throttle lever adjustment ................... 8-41
Front brake pad inspection ................ 8-43
Rear brake shoe inspection ............... 8-43
Brake fluid level inspection ................ 8-45
Brake fluid replacement ...................... 8-47
Front brake adjustment ...................... 8-49
Rear brake adjustment ....................... 8-51
Adjusting the rear brake light switch ... 8-57
Clutch adjustment .............................. 8-59
Cable inspection and lubrication......... 8-61
Brake lever and brake pedal
lubrication ........................................ 8-63
Steering shaft lubrication ................... 8-63
8
U4XE64.book Page 2 Thursday, May 30, 2002 1:49 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 specified. In
addition, do not use oils labeled “ENERGY
CONSERVING II” or higher.


Make sure that no foreign material enters
the crankcase.
_
Oil quantity:
Periodic oil change:
1.5 L
With oil filter element replacement:
1.6 L
Total amount:
1.8 L
U4XE64.book Page 15 Thursday, May 30, 2002 1:49 PM

8-7
EBU00262
PERIODIC MAINTENANCE/LUBRICATION
ITEM ROUTINEINITIAL EVERY
1
month3
months6
months6
months1
year
Valves*•Check valve clearance.
•Adjust if necessary.
Spark plug•Check condition.
•Adjust gap and clean.
•Replace if necessary.Air filter•Clean.
•Replace if necessary.Every 20–40 hours
(More often in wet or dusty areas.)
Carburetor*•Check idle speed/starter operation.
•Adjust if necessary.Cylinder head breather
system*•Check breather hose for cracks or damage.
•Replace if necessary.Exhaust system*•Check for leakage.
•Retighten if necessary.
•Replace gasket if necessary.Fuel line*•Check fuel hose for cracks or damage.
•Replace if necessary.Engine oil
•Replace (Warm engine before draining).Engine oil filter
•Clean.Engine oil strainer
•Clean.Final gear oil•Check oil level/oil leakage.
•Replace.Front brake*•Check operation/fluid leakage/see NOTE page 8-8.
•Correct if necessary.Rear brake*•Check operation.
•Adjust if necessary.Clutch*•Check operation.
•Adjust if necessary.U4XE64.book Page 7 Thursday, May 30, 2002 1:49 PM

8-15 1. Drain bolt 2. O-ring
3. Compression spring 4. Oil strainer
1. Boulon de vidange 2. Joint torique
3. Ressort de compression 4. Crépine d’huile
1. Perno de drenaje 2. Junta tórica
3. Muelle de compresión 4. Tamiz de aceite
Engine oil replacement and oil filter element
cleaning
1. Place the machine on a level surface.
2. Warm up the engine for several minutes and
stop it.
3. Place a container under the engine to collect
the used oil.
4. Remove the engine oil filler cap and then the
drain bolt to drain the oil.CAUTION:_ When removing the drain bolt, the compres-
sion spring, oil strainer and O-ring will fall out.
Take care not to lose these parts. _
U4XE64.book Page 15 Thursday, May 30, 2002 1:49 PM

8-17 1. Oil filter cover
2. Oil filter element
3. O-ring
1. Couvercle du filtre à huile
2.Élément du filtre à huile
3. Joint torique
1. Tapa del filtro de aceite
2. Elemento del filtro de aceite
3. Junta tórica
5. Remove the oil filter cover and oil filter ele-
ment.
6. Clean the oil strainer and oil filter element
with solvent.
7. Inspect the O-ring and replace it if damaged.
8. Install the oil filter element, O-ring and oil filter
cover.
9. Install the oil strainer, compression spring,
O-ring and drain bolt.
10. Tighten the drain bolt and the oil filter cover
bolts to the specified torques.CAUTION:_ Before installing the drain bolt, be sure to in-
stall the O-ring, compression spring and oil
strainer. _11. Fill the engine with oil and install the engine
oil filler cap. Tightening torque:
Drain bolt (engine):
43 Nm (4.3 m·kgf)
Oil filter cover bolt:
10 Nm (1.0 m·kgf)
U4XE64.book Page 17 Thursday, May 30, 2002 1:49 PM

8-19
CAUTION:_ Be sure no foreign material enters the crank-
case. _12. Warm up the engine for several minutes at
idle speed. Check for oil leakage while warm-
ing up.CAUTION:_ If oil leakage is found, stop the engine immedi-
ately and check for the cause. _
Recommended engine oil:
See page 10-2.
Oil quantity:
Periodic oil change:
1.5 L
With oil filter element cleaning:
1.6 L
Total amount:
1.8 L
U4XE64.book Page 19 Thursday, May 30, 2002 1:49 PM

8-33
1. Air filter element 2. Foam cover
1.Élément du filtre à air 2. Cache en mousse
1. Elemento del filtro de aire 2. Forro de espuma
3. Pull out the air filter element.
4. Separate the foam cover from the air filter el-
ement.
5. Tap the air filter element lightly to remove
most of the dust and dirt. Blow out the re-
maining dirt with compressed air. If the air fil-
ter element is damaged, replace it.
6. Wash the foam cover gently but thoroughly in
water or solvent.
WARNING
When using solvent to clean the foam cover,
always use parts cleaning solvent. Never use
low flash point solvents or gasoline to clean
the foam cover because the engine could
catch fire or explode. 7. Squeeze the excess solvent out of the foam
cover and let it dry.CAUTION:

Do not twist the foam cover when squeez-
ing it.


Do not apply oil to the foam cover.
8. Inspect the foam cover. If damaged, replace
it.
U4XE64.book Page 33 Thursday, May 30, 2002 1:49 PM

10-2
10
Engine:
Type Air-cooled 4-stroke, SOHC
Cylinder arrangement Single cylinder, forward-inclined
Displacement 229.6 cm
3
Bore
× stroke 71
× 58 mm
Compression ratio 8.7:1
Starting system Electric starter and recoil starter
Lubrication system Wet sump
Engine oil:
Type
Quantity:
Periodic oil change (engine oil)
Periodic oil change
(engine oil with oil filter replacement)
Total amountSee page 5-13
1.5 L
1.6 L
1.8 L
Final gear oil:
Type SAE 80 API “GL-4” Hypoid Gear Oil
Quantity
Total amount 0.27 LModel YFM250X
E-10-E.fm Page 2 Monday, June 3, 2002 11:25 AM