Yamaha YFM250R Owner's Manual page 81

To change the engine oil (with or without oil
filter element cleaning)
1. Place the ATV on a level surface.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Place an oil pan under the engine to collect
the used oil.
4. Remove the engine oil filler cap, and then re-
move the engine oil drain bolt to drain the oil
from the crankcase.
1
1. Engine oil drain bolt
ECB00310
CAUTION:
When removing the engine oil drain bolt, the
compression spring, oil strainer and O-ring will
fall out. Take care not to lose these parts.
NOTE:
Skip steps 5–9 if the oil filter element is not being
cleaned.
5. Remove the oil filter element cover by remov-
ing the bolts, and then remove the oil filter el-
ement.
1. Oil filter element cover
2. Bolt
6. Clean the oil filter element with solvent.
7. Check the O-rings for damage and replace it if
necessary.
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