Move the oil pan to the right side of the ATV. Unscrew the drain plug from the lower right side of the motor’s crankcase, using a socket wrench.
Clean the drain plug with a lint-free rag. Screw the drain plug back on the crankcase after it has drained, using a socket wrench.
Unscrew the oil filter from the left side of the motor, using a strap wrench. Drain any oil remaining in the oil filter and the oil pump into the oil pan.
Wipe the oil pump’s mating surface with a lint-free rag to remove any debris or buildup.