hey all, i have a ducar 125 which i oulled down to replace piston and rings and reseat the valves. upon pulling it down, i discovered thst the cam is just about worn through. I took it to a mate to check out, he says the engine is fine, just some clown has run it out or very low on oil at some stage. i am having trouble finding a new cam. any ideas? also, can any one tell me if the exhaust system off a crf 50 will fit on the orion 125? we have a feeling it might, but not 100% sure, thanks!