stock compression ratio on a 1982 gs 1100 gl?

[Anonymous]

What is the stock compression ratio on a 1982 gs 1100 gl? I have a clymer manual but it says nothing about the compression ratio. Thanks in advance.

[Anonymous]

Stock Compression ratio

It is 9:5:1. This information came from the factory service manual.

Jason :twisted:

[argonsagas]

I'm not certain on the ratio, but I believe it is about 9.5 to 1.

There is a formula for determining it, but you need the exact internal engine measurements, including all clearances.

If you can settle for an approximation, check your engine compression in pounds per square inch and divide by 14.7.

[JJ]

GS1100GL compression ratio

My Suzuki factory service manual shows a compression ratio of 8.8:1 for the GS1100GLZ.

[Alan Schlosser]

GS1100GLZ specs

Here is what I have in the service manual:
Bore 72.0 mm
Stroke 66.0 mm
Displacement 1074 cm3
Compression ratio 8.8:1
Mikuni BS34SS