inlet boot hole pitches

[dogal123]

Hi everyone! Looking for some help please! I recently bought a GS750 engine for a project I'm doing, engine number GS750-74382, the engine had no inlet boots so I bought some from a breakers. My problem is the pitch of the mounting holes on the boot flange is 60mm and the pitch of the holes on the cylinder head is 70mm when I asked about this, the guy was surprised and suggested maybe someone has put a GS850 head on as this is the only head that would fit a 750. Could this be what has happened any help would be much appreciated.

[waltfen]

I know that the GS550 uses different size intake boots on later models with CV carbs. Perhaps its the same with the GS750 and you have boots from an earlier/later model.

[dogal123]

Thats a good point I noticed on one of these sites that have the micro fiches that from 1980 they seem to use cv carbs, I think what may have thrown me is the engine has a kick start and electric start. So I thought it may be older. Thanks for that. All info appreciated

[Steve]

If it has a kick start, it is '79 or older. Those are also the same years that use the VM carbs with the smaller throats.


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