ok so no major problems then with drivetrain does it bolt right up using stock mounts and can ya use the stock 2 stage filter? thanks for the input it helps alot phil convinced me of the Zenoah just didn't realize for little more and could have the 31cc and I also has a choke I see which kinda what iwas looking for if decide run in colder temps in winter would be big help or shelf it for winter and aluminum it out