2001 YAMAHA YFM400F engine oil

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PERIODIC MAINTENANCE/LUBRICATION
ITEM ROUTINEINITIAL EVERY
1
month3
months6
months6
months1
year
Valves*

• Check valve clearance.
• Adjust if necessary.
Cooling system
• Check coolant leakage.
• Repair if necessary.
• Replace coolant every 24 months.
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.)
Crankcase breather
system*

• Check breather hose for cracks or damage.
• Replace if necessary.

Exhaust system*

• Check for leakage.
• Retighten if necessary.
• Replace gasket(s) if necessary.

Carburetor*

• Check and adjust idle speed/starter operation.
• Adjust if necessary.

Fuel line*

• Check fuel hose for cracks or damage.
• Replace if necessary.

Engine oil

• Replace (Warm engine before draining).

Engine oil filter cartridge

• Replace.

Engine oil strainer*

• Clean.

Final gear oil

• Check oil level/oil leakage.
• Replace every 12 months.

Differential gear oil
Front brake*

• Check operation/fluid leakage/see NOTE page 8-8.
• Correct if necessary.

Rear brake*

• Check operation/fluid leakage/see NOTE page 8-8.
• Correct if necessary.

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Engine oil
Oil level inspection
1. Place the machine on a level place and
warm up the engine for several minutes.
2. Stop the engine.
3. Remove the dipstick and wipe it off with a
clean rag. Insert the dipstick in the filler
hole without screwing it in.NOTE:Wait a few minutes until the oil level settles be-fore checking.
4. The oil level should be between the maxi-
mum and minimum marks. If the level is
low, fill the engine with sufficient oil to
reach the specified level.
1. Engine oil dipstick
1. Jauge d’huile
1. Varilla de medición del aceite de motor1. Maximum level mark 2. Minimum level mark
1. Repère de niveau maximum 2. Repère de niveau minimum
1. Marca de nivel máximo 2. Marca de nivel mínimo

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Engine oil and oil filter cartridge replacement
1. Remove panels E and F. (See pages 8-27 ~
8-29 for removal and installation proce-
dures.)
2. Warm up the engine for several minutes.
3. Stop the engine. Place an oil pan under
the engine and remove the dipstick.
4. Remove the drain bolt and drain the oil.
1. Engine oil drain bolt
2. Oil strainer
1. Boulon de vidange de l’huile
2. Crépine à huile
1. Perno de drenaje del aceite de motor
2. Colador de aceite

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7. Apply a light coat of engine oil to the
O-ring of the new oil filter.NOTE:Make sure the O-ring is seated properly.
8. Install the oil filter and tighten it to the
specified torque with an oil filter wrench.
Tightening torque:
Oil filter:
17 Nm (1.7 m·kg)
1. Torque wrench
1. Clé dynamométrique
1. Llave de apriete

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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. 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

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Cable inspection and lubrication
WARNING
Inspect cables frequently and replace if dam-
aged. Corrosion can result when the outer
covering of control cables becomes damaged.
Cables can also become frayed or kinked. Op-
eration of controls could be restricted, whichcould cause an accident or injury.
Lubricate the inner cables and the cable ends.
If the cables do not operate smoothly, ask a
Yamaha dealer to replace them.
Recommended lubricant:
Engine oil