I need to check my gps, but I should be around 650 miles on my motor. It's my first one, so I haven't had to rebuild anything yet. Motor is still running strong, for a 49cc anyway
. I was worried something might go wrong when i went to a 32:1 mix for my fuel, since I really didn't know how good the Lucas semi synth oil I've been using was, but it's on the second gallon at that ratio and it's doing great.