needs new crankshaft,bearings,piston and cylinder it just seem cheaper to get new engine it happened while i was being a twat and racing an rs50 and doing 65 -70 down a hill and it crunched and made a pop and scraping sound and upon removing the cylinder wich had lumps missing and piston was in 3 bits the connecting rod was no longer attached to piston and the rod was bent a bit also looks like bearings in crank cases the garage said a bearing probably went bcoz of the malossi 70 kit
d
July 2010