Place quad on level surface.
Start engine and let it warm up for several minutes
Stop engine and place oil pan under engine
remove dipstick
remove drain plug from bottom of case, take note of order of O ring, Compression spring and oil strainer.
Drain engine oil
When oil is draining, remove (3) bolts on small side circular cover to access oil filter
careful not to loose o ring on cover
remove old filter and replace with new one
Inspect O ring, if damaged, replace with new one
Apply a little bit of lithium soap grease to o ring and install new oil filter, o ring and filter cover
tighten down oil filter cover bolts to no more than 7lb's
After oil finishes draining from bottom install the oil strainer, compression ring, o ring and drain plug back on bottom of quad (put them back in the correct order)
Tighten down bottom drain plug to no more than 31lb's
Fill engine back up with oil through dip stick (approx 2.5 quarts), I use Valvoline 4 cycle oil
Check oil level and make sure its at proper level
Run bike for about 2 minutes, stop and check oil level and add if needed.
DONE.....