Engine Oil Replacement/Oil Filter Element Cleaning - Yamaha BIGBEAR YFM400NM Owner's Manual

2. Engine oil replacement and oil filter el-
ement cleaning
a. Place the machine on a level place.
b. Warm up the engine for several min-
utes and stop it.
c. Place a container under the engine.
d. Remove the dipstick and drain plug to
drain the oil.
CAUTION:
When removing the drain plug, the com-
pression spring, oil strainer and O-ring will
fall out. Take care not to lose these parts.
1. Drain plug
3. Compression spring
e. Remove the oil filter cover and oil filter.
1. Filter cover
8-6
2. O-ring
4. Oil strainer
2. Filter cover bolt (× 3)