Hey, I bought a mini dirtbike with this motor on it. It was blown up, so i did a full rebuild on it. I replaced: Piston Piston rings NEW Cylinder Top end bearings All bearing seals magneto and All new gaskets THis motor is 100% ready to go to be bolted on for a sweet motorized bike kit. It runs nice and had an after market carb. TONS of Power from only 50 cc. I have 500$ invested in the motor and all the part, this is too much for me to keep for a second mb build. I need the money for a truck. SO MAKE ME AN OFFER!