Yamaha GRIZZLY 450 Owner's Manual page 111

To change the engine oil (with or without oil fil-
ter cartridge replacement)
1. Remove panel F. (See page 8-9.)
2. Place the ATV on a level surface.
3. Start the engine, warm it up for several min-
utes, and then turn it off.
4. Place an oil pan under the engine to collect
the used oil.
5. Remove the engine oil filler cap, and then re-
move the engine oil drain bolt to drain the oil
from the crankcase.
1. Engine oil drain bolt
NOTE:
Skip steps 6–10 if the oil filter cartridge is not being
replaced.
6. Remove panels D and E. (See page 8-9.)
7. Remove the oil filter cartridge with an oil filter
wrench.
1. Oil filter cartridge
8-18
8