I have a BMP kit with a Honda GX35. Most of the maintenance I do is on the bike, rather than the motor/driveline. I do keep up with regular oil changes, check the spark plug monthly, clean the screen in the exhaust, and wipe off the sooty residue that accumulates on the entire backend of the bike. Once per year I seem to get a flat back tire, so I'll replace the rear tube roughly once a year. This year I had two "unscheduled maintenance" issues: I hit a monster pothole that left me with some broken spokes on the back wheel. Replaced with my spare back wheel. Then, a month later, the motor died on me - turned out to be a failed ignition coil. Most of the time, though, it's a carefree ride.
