Honda305.com Forum

I'm in Utah as well (I'm up in Logan though, probably too far). I'm finishing up my 63 CB72 (but bored out to a .75 oversized from a CB77) and hope to be riding this summer. I also have a 65 C200 with a 81 C70 70cc engine on it right now. I just bought a 140cc Lifan engine on ebay to swap onto it, s...

So, if I have that right, then I would have about 320cc? I used your math, but multiplied by my bore radius of 30.75 (for the .75 oversized), is that right?

Thanks LoudMouse, I felt stupid for asking, and once you know where they are, it seems really hard to miss :)

I know this is a dumb question, and probably not in the correct forum (wasn't sure where to ask it), but I can't seem to find a frame vin number on my CB72 (well, the engine vin says it's a 1963 CB72, but I don't know if the frame and engine match). I think the person that owned it before me spray p...

So with the CB77 .75 oversized pistons on my cb72 engine, how many cc is my engine?

I have my engine in the shop and they are replacing all of the gaskets, cam chain, chain roller and tensioner, and piston rings... The vin number on the engine showed that it was a 1963 CB72, but when I got the head off and took the engine to the shop, they saw that it said ".75" on it, so they figu...

Thanks piecutter, I got the tensioner ordered now as well.