classic motorcycle forum

Motorcycle Discussions => Japanese Bikes => Topic started by: lexcomm on February 26, 2006, 08:52:28 AM

Title: Unknown Yamaha
Post by: lexcomm on February 26, 2006, 08:52:28 AM

I have an old yamaha road bike which i would like to know more about.
All i know  is that the frame num. is y31-9721 it is 2stroke and probably 80cc.
Looks to be from the 1960s at a guess.

Title: Re: Unknown Yamaha
Post by: jgt666 on September 25, 2006, 09:20:12 AM

Hi, sounds like a single cylinder 2 stroke YG1 or if it has an upswept exhaust a YGS1, I had one in 1966 as my first road bike, I would love to see pictures

Title: Re: Unknown Yamaha
Post by: lexcomm on September 26, 2006, 12:22:30 PM

will try to add some photos. thanks