Yamaha WR450F(R) Owner's Service Manual page 81

ENGINE OIL REPLACEMENT
6. Idle the engine more than 10 seconds
while keeping the motorcycle upright.
Then stop the engine and add the oil to
the maximum level.
7. Install:
Oil tank cap
G
ENGINE OIL REPLACEMENT
1. Start the engine and let it warm up for
several minutes.
2. Stop the engine and place an oil pan
under the drain bolt.
3. Remove:
Oil tank plug 1
G
Oil filler cap 2
G
Drain bolt (with gasket) 3
G
Oil filter drain bolt (O-ring) 4
G
Drain bolt (with gasket) 5
G
Drain bolt (with gasket) 6
G
Drain the crankcase and oil tank
(frame) of its oil.
4. Remove:
Engine skid plate
G
Engine oil hose clamp 1
G
Bolt (engine oil hose) 2
G
Engine oil hose 3
G
Oil strainer (frame) 4
G
5. Clean:
Oil strainer (frame)
G
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