Hi all i have just bought a rd 50 but the engine numbers and frame dont match they are nearly the same the both start with 5L3 do the rd yams have the same frame and engine number if any one can let me know that would be great or if there is a site were i can tell if check what bikes they are off cheers

yes they should match,but iff you have a replacement engine in there or like mine a stolen one(joking:rolleyes: )then it wont match.