2003 YAMAHA BIG BEAR PRO 400 oil

8-19
11. Fill the engine with oil and install the oil filler
cap.CAUTION:_ Make sure that no foreign material enters the
crankcase. _
Recommended oil:
See page 10-2.
Oil quantity:
Periodic oil change:
2.4 L
With oil filter element replacement:
2.5 L
Total amount:
3.4 L
U4SH6A.book Page 19 Thursday, May 30, 2002 1:25 PM

8-21
12. Install the clamp by installing the screw.
13. Install the shift pedal by installing the bolt.
14. 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. _
U4SH6A.book Page 21 Thursday, May 30, 2002 1:25 PM

8-23 1. Bolt (× 3)
1. Boulon (× 3)
1. Perno (× 3)
1. Oil filler bolt
1. Boulon de l’orifice de remplissage
1. Perno del orificio de llenado
EBU00462
Transfer gear oil replacementNOTE:When replacing the transfer gear oil, replace the
engine oil also.1. Remove the transfer gear case guard.
2. Place the machine on a level place.
3. Place a container under the transfer gear
case.
4. Remove the oil filler bolt and drain bolt to
drain the oil.
5. Install the drain bolt and tighten to specifica-
tion.
Tightening torque:
Drain bolt (transfer gear case):
20 Nm (2.0 m·kgf)
U4SH6A.book Page 23 Thursday, May 30, 2002 1:25 PM

8-25 1. Drain bolt
1. Boulon de vidange
1. Perno de drenaje
6. Fill the transfer gear case with oil.CAUTION:
Be sure no foreign material enters the transfer
gear case.7. Install the filler bolt and tighten to specifica-
tion.
8. Check for oil leakage. If oil leakage is found,
check for the cause.
9. Reinstall the transfer gear case guard.Recommended oil: See page 10-2
Quantity:
Transfer gear oil and engine oil with
filter replacement:
2.8 L
Tightening torque:
Filler bolt (transfer gear case):
23 Nm (2.3 m·kgf)
U4SH6A.book Page 25 Thursday, May 30, 2002 1:25 PM

8-27 1. Final gear oil 2. Correct oil level
3. Filler bolt
1. Huile de transmission finale 2. Niveau d’huile correct
3. Boulon de l’orifice de remplissage
1. Aceite de la transmisión final 2. Nivel de aceite correcto
3. Perno de llenado
1. Bolt (× 3)
1. Boulon (× 3)
1. Perno (× 3)
EBU00825
Final gear oil
Final gear oil measurement
1. Place the machine on a level place.
2. Remove the oil filler bolt and check the oil lev-
el. It should be up to the brim of the hole. If
the level is low, add oil to raise it to the proper
level.CAUTION:_ Be sure no foreign material enters the final
gear case. _3. Install the oil filler bolt and tighten it to the
specified torque.
Final gear oil replacement
1. Remove the final gear case cover.
2. Place the machine on a level place.
3. Place a container under the final gear case to
collect the used oil. Tightening torque:
Oil filler bolt:
23 Nm (2.3 m·kgf)
U4SH6A.book Page 27 Thursday, May 30, 2002 1:25 PM

8-29 1. Drain bolt
1. Boulon de vidange
1. Perno de drenaje
4. Remove the oil filler bolt and the drain bolt to
drain the oil.
5. Install the drain bolt and tighten it to the spec-
ified torque.
6. Fill the final gear case with oil.CAUTION:_ Be sure no foreign material enters the final
gear case. _
Tightening torque:
Drain bolt (final gear case):
23 Nm (2.3 m·kgf)
Recommended oil:
See page 10-3.
Oil quantity:
Periodic oil change:
0.19 L
Total amount:
0.25 L
U4SH6A.book Page 29 Thursday, May 30, 2002 1:25 PM

8-31 1. Filler bolt
1. Boulon de l’orifice de remplissage
1. Perno de llenado
7. Install the filler bolt and tighten to the speci-
fied torque.
8. Check for oil leakage. If oil leakage is found,
check for the cause.
9. Install the final gear case cover.
EBU00826
Differential gear oil replacement
1. Place the machine on a level place.
2. Place a container under the differential gear
case to collect the used oil.
3. Remove the filler bolt and drain bolts to drain
the oil. Tightening torque:
Filler bolt (final gear case):
23 Nm (2.3 m·kgf)
U4SH6A.book Page 31 Thursday, May 30, 2002 1:25 PM

8-33 a. Front drain bolt
b. Rear drain bolt
a. Boulon de vidange avant
b Boulon de vidange arrière
a. Perno de drenaje frontal
b. Perno de drenaje trasero
4. Install the drain bolts and tighten to specifica-
tion.
5. Fill the differential gear case with oil.CAUTION:_ Be sure no foreign material enters the differen-
tial gear case. _
Tightening torque:
Drain bolt (differential gear case):
a 23 Nm (2.3 m·kgf)
b 16 Nm (1.6 m·kgf)
Recommended oil:
See page 10-3.
Oil quantity:
Periodic oil change:
0.47 L
Total amount:
0.5 L
U4SH6A.book Page 33 Thursday, May 30, 2002 1:25 PM