Hmmmmmmm....OK, looks like its got mixed. I suspect Alan was talking about GT550, and I was talking GT750. Having said that, post 1971 model serial numbers for both frame and engine number are well documented for all Suzuki models, its the pre-1971 ones that are a problem. For all the GT models you can take a look at this link:suzukigary wrote:Ian,
should they read GT550 and NOT GT750.You are referring to the 550, right?
http://www.oldjapanesebikes.com/mraxl_G ... /index.php
I have several source documents available there. If anyone has a pre-1971 model Suzuki and would like to assist with bracketing the production years I'd like to hear from you. And the 'GT550 Field Guide' section on the site is in development thanks to help from a number of people including some of the board members here - I just need to find some time when the weather is bad to finish it off.