1976 GT500 compression.

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willowden
Posts: 126
Joined: Thu Nov 16, 2017 3:10 pm

1976 GT500 compression.

Postby willowden » Fri Mar 27, 2020 3:29 pm

Hi fellas ,
Does anyone know what a compression test on a GT500 should read ?
Many is saying 100 psi on each pot ?
Thanks, Andy

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itsnotateapot
Posts: 962
Joined: Thu Feb 16, 2012 10:09 pm
Location: Sheffield, South Yorkshire

Re: 1976 GT500 compression.

Postby itsnotateapot » Fri Mar 27, 2020 4:01 pm

just checked my two t500s its around 128 on one of my bikes and 136 on the other, this one had new rings a couple of hundred miles back.
SUZUKI GT750 L 8-)
SUZUKI T500 M 8-)
SUZUKI GT185 K 8-)
Suzuki T500 Cobra 8-) 8-)

willowden
Posts: 126
Joined: Thu Nov 16, 2017 3:10 pm

Re: 1976 GT500 compression.

Postby willowden » Fri Mar 27, 2020 4:49 pm

Thanks , just removed the heads , mishmash of incorrect bolts , some tight some loose & some doing nothing with botched helicoils at some point .
Needs a rebore , at least it is on standard , & strangely it had the correct head gaskets as well as an additional hand made gasket fitted to each pot ?
I think I have got my work cut out with this , can’t decide wether to change the crank seals or just get the bores done & take a chance.


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