A site dedicated to light Yamaha motorcycles from the late 60's and early 70's

We have quite a big update today. A while back we got our hands on the engine and frame (along with registration papers) for a 1968 blue AS1C. The engine was basically unused and the frame was in good condition as well. We figured that we had better finish the job and rebuild it.

This is the entire project from start to finish. Most steps, except for the very first ones, are documented.