For those who bought an ATV and then threw out the owner's/service manual, well, I guess you'll be looking online. Two things your ATV needs for proper function is clean air and clean oil. If where you're riding is extremely dusty, or you've been using the engine to pull heavy loads or do lots of work, clean the filter and change the oil more often. fields to frozen lakes,
from trail riding on great wooded trails to plowing out a foot of snow. Changing the oil and air filter once a year is a good start, but I'd recommend it on a regular basis. CLEAN AIR AND OIL. By and large, today's quads are very reliable, especially when you consider the pounding they take day in and day out. And don't forget: It's much easier working on your ATV in the garage than on the side of a trail.