Yamaha sg400

Posted by Dave on Fri, 08/06/04 - 21:19:13.
In Reply to Yamaha

Can anyoune help me date (possibly by the seial no) my Yamaha SG400? It has made in Japan stamped near the serial number, has single cream binding on the body, neck & headstock with claw inlay in front of headstock, exposed humbuckers no scratch plate gold hardware.
What period were these made from/to, any inf would greatly help. thanks

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SG 400

I'm told that a "2" stamped into the back of the headstock means the neck, at least, was made outside Japan. The process was flawed in so far as the neck was "pre- tensioned(?)". The remedy was, apparently to heat treat the neck. This is a "shit or bust" technique but mine seems fine. Never have found a serial number!

Re: Yamaha sg400

I have had one from new bought about 1982 ... one of my serial number digits has worn and cannot be read ... info is hard to come by and google does not bring many references ... there is a youtube video showing the history of yamaha sgs you may wish to view

Re: Yamaha sg400

Yamaha SG 400

this is the video link:


Re: Yamaha sg400

I have an Yamaha SG400 but I can't find the serial number, where is it please ?
Here is a picture of the head


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