Vintage Dirt Bike Q & A

What's up guys. I'm new to the bike scene and i just picked up a 1975 MT125 in kinda rough shape yesterday. It's my low budget winter project for while i'm up at school. I have most of it stripped already and the frame seems good and most suspension pieces seem at least salvageable. The engine on the other hand is totally seized. I had water leaking out of the crank case when I pulled it and the piston does not want to move for anyone. The kickstarter also seems to have something sheared off in the internal mechanism.

Anyways, what are my options at this point? What engines fit or can i steal parts from? Once I get the case totally apart I can see whether the transmission is salvageable at all. I would like to reuse as much as possible as money is tight. I'm not looking to build a vintage race machine, just a fun project that I can kick around on and have some fun with once I'm finished.