Yamaha BEAR TRACKER YFM250XS Owner's Manual page 270

Recommended engine oil:
See page 10-2.
Oil quantity:
Without oil filter element removal:
1.5 L
With oil filter element removal:
1.6 L
CAUTION:
_
Be sure no foreign material enters the crank-
case.
_
12. Warm up the engine for several minutes at
idle speed. Check for oil leakage while warm-
ing up.
CAUTION:
_
If oil leakage is found, stop the engine immedi-
ately and check for the cause.
_
8-19