[country1982country]

if you have a 350 cc or 400 cc engine I recommend replacing the engine I have tried to rebuild several of them that locked up on my txt rentals where I work we have 50 txt and 20 st all with pretty much the same engine and every one I have taken apart to try to rebuild the case itself is ruined there is a balance shaft behind the crank that times into the motor it usually melts to the case or the cam scars the case and gets wedged to the front case I have not found one that was locked up yet that I could free up and replace the internals I have tried to take 7 blown engines and put them together to make one I'm close to making one but not there yet Its always the caseing