Yamaha RAPTOR 90 2020 Owner's Manual page 89

1. Engine oil filler cap
2. O-ring
3. Engine oil dipstick
4. Maximum level mark
5. Minimum level mark
5. If the engine oil is at or below the minimum
level mark, add sufficient quantity of the rec-
ommended engine oil. NOTICE: Be sure the
engine oil is at the correct level, otherwise
engine damage may result.
6. Check the O-ring for damage, and then insert
the dipstick and tighten the engine oil filler
cap.
To change the engine oil
1. Park the ATV on a level surface.
1
2
3
4
5
[ECB00852]
1. Engine oil drain bolt
2. O-ring
3. Compression spring
4. Oil strainer
9-12
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. NOTICE: When remov-
ing the engine oil drain bolt, the compres-
sion spring, oil strainer and O-ring will fall
out. Take care not to lose these parts.
[ECB00312]
4
3
2
1
9