Yamaha YFM90RA Owner's Manual page 85

4. Insert the dipstick into the filler hole (without
screwing it in), and then remove it again to
check the oil level.
1. Maximum level mark
2. Minimum level mark
TIP
The engine oil should be between the minimum
and maximum level marks.
5. If the engine oil is at or below the minimum
level mark, add sufficient oil of the recom-
mended type to raise it to the correct level.
6. Insert the dipstick into the oil filler hole, and
then tighten the engine oil filler cap.
To change the engine oil
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
1
the used oil.
4. Remove the engine oil filler cap, and then
2
remove the engine oil drain bolt to drain the
oil from the crankcase.
1. Engine oil drain bolt
2. O-ring
3. Spring
4. Oil filter element
5. Check the washer for damage and replace it if
necessary.
6. Install the engine oil drain bolt, and then tighten
it to the specified torque.
8-12
4
3 8 8
2
1