Yamaha YFZ50 2019 Owner's Manual page 87

To check the engine oil level
1. Park the ATV on a level surface.
2. Wait for the engine to cool.
TIP
If the engine was started before checking the oil
level, wait 10 minutes. This will allow oil to settle
into the crankcase for an accurate reading.
3. Remove the engine oil filler cap and wipe the
dipstick with a clean rag.
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1. Engine oil filler cap
4. Insert the dipstick into the filler hole, screw it
in, and then remove it again to check the oil
level.
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.
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[ECB00852]