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8 Posts
I bought a pocket bike for $40 didnt run so I decided to rebuild all of it.. After taking the whole motor apart I Found there was no gaskets besides intake, the piston was scored and the cylinder was full of metal shavings from the piston bc the fuel was lean ( not enough oil in the mix ).
I cleaned the entire inner&outer of the motor and got it ready for the rebuild. Ordered the entire gasket set, a Tornado UFO Performance Air Filter, a pullstart, and a 40mm piston/ piston rings set.
I took the wheels off and all the plastics, leaving basically just the wiring on it. Brakleened te whole thing to clean it, wirebrushed & sanded all of the surface rust on the frame and bolts and adjusted the fork/ steering alignment.
I modded the flywheel to reduce drag with a Dremel to grind the extra fins down and used a hand file and sandpaper to finish it.. If you dont have a dremel you can use just the file or a hacksaw to cut the fins off, will only take longer.
To make a higher clutch lock up amd faster take off i cross drilled 4 holes with a 5/16 drill bit... Also used sand paper to roughen up the clutch shoe pads and deglazed the clutch bell
Will update over next few days with more pictures & info on new parts
Any questions on disassemling the engine just ask
I cleaned the entire inner&outer of the motor and got it ready for the rebuild. Ordered the entire gasket set, a Tornado UFO Performance Air Filter, a pullstart, and a 40mm piston/ piston rings set.
I took the wheels off and all the plastics, leaving basically just the wiring on it. Brakleened te whole thing to clean it, wirebrushed & sanded all of the surface rust on the frame and bolts and adjusted the fork/ steering alignment.
I modded the flywheel to reduce drag with a Dremel to grind the extra fins down and used a hand file and sandpaper to finish it.. If you dont have a dremel you can use just the file or a hacksaw to cut the fins off, will only take longer.
To make a higher clutch lock up amd faster take off i cross drilled 4 holes with a 5/16 drill bit... Also used sand paper to roughen up the clutch shoe pads and deglazed the clutch bell
Will update over next few days with more pictures & info on new parts
Any questions on disassemling the engine just ask