After trying to get this quad together and running into multipule problems I'm back to using the old engine that came with the quad. I noticed that whoever had it before me decided to port the cases so big that the base gasket has vet little material for the base gasket to seal against. Anyone know what iter brand ATV's beside DRR will work? I tried a scooter from a yamaha 50 and the case is different in the transmission area. Any help would be greatly appreciated.