2001 YAMAHA YFM400F oil

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9. Fill the engine with sufficient oil to reach
the specified level. Install the dipstick and
tighten it.CAUTION:l
Do not put in any chemical additives. En-
gine oil also lubricates the clutch and ad-
ditives could cause clutch slippage.
l
Be sure no foreign material enters thecrankcase. Recommended oil:
See page 10-2.
Oil quantity:
Total amount:
2.6 L
Periodic oil change:
2.3 L
With oil filter replacement:
2.4 L

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10. Start the engine and warm it up for sever-
al minutes. While warming up, check for
oil leakage. If oil leakage is found, stop the
engine immediately and check for the
cause.
11. Install the panels.
EBU00705
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
level. 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 finalgear case.
1. Final gear oil
2. Final gear case filler bolt
3. Proper level
1. Huile de transmission finale
2. Boulon de remplissage du carter de transmission finale
3. Niveau correct
1. Aceite de la transmisión final
2. Tapa de la caja del filtro
3. Nivel adecuado

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3. Install the oil filler bolt and tighten 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.
4. Remove the oil filler bolt and the drain
bolt to drain the oil.
5. Install the drain bolt and tighten to the
specified torque. Tightening torque:
Oil filler bolt:
23 Nm (2.3 m·kg)
Tightening torque:
Drain bolt (final gear case):
23 Nm (2.3 m·kg)
1. Bolt (´ 2)
1. Boulon (´ 2)
1. Perno (´ 2)1. Final gear oil drain bolt
1. Boulon de vidange d’huile de transmission finale
1. Perno de drenaje de aceite del engranaje final

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6. Fill the final gear case with oil.CAUTION:Be sure no foreign material enters the finalgear case.
7. Install the filler bolt and tighten to the
specified torque.
8. Check for oil leakage. If oil leakage is
found, check for the cause.
9. Install the final gear case cover.Recommended oil:
SAE 80 API “GL-4” Hypoid gear oil
Oil quantity:
Periodic oil change:
0.19 L
Total amount:
0.22 L
Tightening torque:
Filler bolt (final gear case):
23 Nm (2.3 m·kg)

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EBU00706
Differential gear oil
Differential gear oil measurement
1. Place the machine on a level place.
2. Remove the oil filler bolt and check the oil
level. It should be up to the brim of the
hole. If the level is low, add sufficient oil to
raise it to the specified level.CAUTION:Be sure no foreign material enters the differen-tial gear case.
3. Install the oil filler bolt and tighten it to the
specified torque.
Tightening torque:
Oil filler bolt:
23 Nm (2.3 m·kg)
1. Differential gear oil
2. Differential gear case oil filler bolt
3. Specified level
1. Huile de différentiel
2. Boulon de remplissage du carter de différentiel
3. Niveau d’huile spécifié
1. Aceite de engranajes del diferencial
2. Perno de relleno de aceite de la caja del diferencial
3. Nivel especificado

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Differential gear oil replacement
1. Place the machine on a level place.
2. Place a container under the differential
gear case to catch the oil.
3. Remove the filler bolt and drain bolt to
drain the oil.
4. Install the drain bolt and tighten it to the
specified torque.
Tightening torque:
Drain bolt:
10 Nm (1.0 m·kg)
1. Differential gear oil drain bolt
1. Boulon de vidange de l’huile de différentiel
1. Perno de drenaje de aceite de engranajes del diferencial

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5. Fill the differential gear case with oil.CAUTION:Be sure no foreign material enters the differen-tial gear case.
6. Install the filler bolt and tighten it to the
specified torque.
7. Check for oil leakage. If oil leakage is
found, check for the cause. Recommended oil:
SAE 80 API “GL-4” Hypoid gear oil
Oil quantity:
Periodic oil change:
0.35 L
Total amount:
0.42 L

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3. Remove the air filter element, and sepa-
rate it from the guide.
4. Wash the element gently but thoroughly
in solvent.
WARNING
Always use parts cleaning solvent to clean the
air filter element. Never use low flash point
solvents or gasoline to clean the air filter ele-
ment because the engine could catch fire orexplode.
5. Squeeze the excess solvent out of the fil-
ter and let it dry.CAUTION:Do not twist the filter element when squeez-ing it.
6. Inspect the element. If damaged, replace
it.
7. Apply SAE 10W30 motor oil to the ele-
ment.NOTE:The element should be wet but not dripping.
1. Air filter element
1. Élément de filtre à air
1. Elemento del filtro de aire1. Air filter guide
1. Guide de filtre à air
1. Filtro de aire guía