Hi there. I have a TZR 50 that's had a big bore kit put in, with new crank shaft. It was done after a previous owner blew the engine up. I bought it with the big bore kit etc and have ridden the very first mile it rode. I have a problem with it now though. I'm desperate for help and can't think of what else I could try. I have tried a fair bit and have spent some wonga on it. But it just won't run. Please help

to the YOC. Hopefully you've created another post with the technical info on your bike... and its not running. This forum is just for the intros.

but as Sach says post in the workshop and tell us everything you have done to cure it including what the symptoms are.