2003 YAMAHA BEAR TRACKER 250 oil

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.
U4XE64.book Page 7 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

8-8 * It is recommended that these items be serviced by a Yamaha dealer.
** Lithium soap base grease.
NOTE:Recommended brake fluid: DOT 4
Brake fluid replacement:
1. When disassembling the master cylinder or caliper, replace the brake fluid. Normally check the brake
fluid level and add fluid as required.
2. On the inner parts of the master cylinder and caliper, replace the oil seals every two years.
3. Replace the brake hoses every four years, or if cracked or damaged.Wheels*•Check balance/damage/runout.
•Repair if necessary.Wheel bearings*•Check bearing assemblies for looseness/damage.
•Replace if damaged.Front and rear
suspension*•Check operation.
•Correct if necessary.Steering system*•Check operation.
•Correct if damaged.
•Check toe-in.
•Adjust if necessary.Steering shaft*
•Lubricate every 6 months**.Fittings and Fasteners*•Check all chassis fittings and fasteners.
•Correct if necessary.Battery*•Check specific gravity.
•Check that the breather hose is working properly.
•Correct if necessary.
ITEM ROUTINEINITIAL EVERY
1
month3
months6
months6
months1
year
U4XE64.book Page 8 Thursday, May 30, 2002 1:49 PM

8-10 * Il est recommandé de confier ces opérations à un concessionnaire Yamaha.
** Graisse à base de savon au lithium
N.B.:Liquide de frein recommandé: DOT 4
Renouvellement du liquide de frein.
1. Après démontage du maître cylindre ou d’un cylindre d’étrier, renouveler le liquide de frein.
Habituellement, vérifier le niveau du liquide de frein et le compléter si nécessaire.
2. Renouveler les joints d’étanchéité du maître cylindre et des cylindres d’étrier tous les deux ans.
3. Remplacer les flexibles de frein tous les quatre ans, ou lorsqu’ils sont fissurés ou autrement endommagés.Embrayage*•Contrôler le fonctionnement.
•Régler si nécessaire.Roues*•Contrôler l’équilibrage, l’état et le voile.
•Réparer si nécessaire.Roulements de roue*•Contrôler les roulements (jeu, endommagement).
•Remplacer si endommagés.Suspension avant et
arrière*•Contrôler le fonctionnement.
•Réparer si nécessaire.Direction*•Contrôler le fonctionnement.
•Réparer si endommagée.
•Contrôler la convergence.
•Régler si nécessaire.Arbre de direction*•Lubrifier tous les 6 mois**.Visserie*•Contrôler le serrage de toute la visserie du châssis.
•Corriger si nécessaire.Batterie*•Contrôler la densité.
•Contrôler l’acheminement du reniflard.
•Corriger si nécessaire.
DESCRIPTION VÉRIFICATIONINITIAL TOUS LES
1 mois 3 mois 6 mois 6 mois 1 an
U4XE64.book Page 10 Thursday, May 30, 2002 1:49 PM

8-13 1. Oil filler cap 2. Dipstick
3. Maximum level mark 4. Minimum level mark
1. Bouchon de remplissage d’huile 2. Jauge
3. Repère de niveau maximum 4. Repère de niveau minimum
1. Tapa de relleno de aceite 2. Varilla de nivel de aceite
3. Marca de nivel máximo 4. Marca de nivel mínimo
EBU01100
Engine oil
Engine oil level measurement
1. Place the machine on a level surface.
2. Warm up the engine for several minutes and
stop it. Wait at least ten minutes for the oil to
drain back into the crankcase before check-
ing the oil level.NOTE:_ Be sure to wait at least ten minutes until the oil lev-
el settles before checking. _3. Remove the engine oil filler cap and wipe the
dipstick off with a clean rag. Insert the dip-
stick in the filler hole without screwing it in.
4. Remove the dipstick and check the oil level.
5. The oil level should be between the maxi-
mum and minimum marks. If the level is low,
add oil to raise it to the proper level.
6. Install the engine oil filler cap.CAUTION:_ Make sure no foreign material enters the
crankcase. _
U4XE64.book Page 13 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