Heya guys i have just bought a tzr 50 and the engine needs an overhaul. Im looking to get new crank, seals, bearings, top end etc. have any of you guys had a tzr 50? What set up did you use? I.e what crank with what top end? Was it big bore? The most important thing i am looking for is reliability. I will sacrifice top speed for this. Any advice will be great. Thanks Scott