Yamaha YZ450F(V) Owner's Service Manual page 174

ENGINE OIL REPLACEMENT
CAUTION:
a
• Do not add any chemical additives or use
oils with a grade of CD a or higher.
• Do not use oils labeled "ENERGY CON-
SERVING II" b or higher. Engine oil also
lubricates the clutch and additives could
b
cause clutch slippage.
• Do not allow foreign materials to enter the
crankcase.
5. Start the engine and let it warm up for sev-
CAUTION:
When the oil tank is empty, never start the
engine.
6. Idle the engine more than 10 seconds
7. Install:
ENGINE OIL REPLACEMENT
1. Start the engine and let it warm up for sev-
2. Stop the engine and place an oil pan under
3. Remove:
3 - 15
eral minutes.
while keeping the machine upright. Then
stop the engine and add the oil to the maxi-
mum level.
• Oil tank cap
eral minutes.
the drain bolt.
• Oil tank plug 1
• Oil filler cap 2
• Drain bolt (with gasket) 3
• Oil filter drain bolt (O-ring) 4
• Drain bolt (with gasket) 5
Drain the crankcase and oil tank of its oil.
INSP
ADJ