Compression test results.... that bad?

[Anonymous]

So we did the compression test. The GS650G has been sitting for years and not been running. So we had to do a 'cold' test.

Results:

105
60
105
115

Then we did a wet test:

180
175
160
175

I think the battery was starting to drain, so I don't know if the second set are 100% accurate. Plus we were using the hold in rubber tipped gauge, and it kept on popping and shooting out oil!

How bad are the results? Do I need new rings and pistons?

--
wiseguy

[Anonymous]

It might be a simple case of stuck rings. Get it running for a few days or a week, then do the test again.

[Anonymous]

Can you explain what "stuck rings" means?

Thanks!

[Jeff Tate]

The ring(s) may have gotten somewhat glued to one spot by old gummy oil and all and won't conform to the cylinder walls which equals no or low compression.

[Anonymous]

Ah, ok make sense.

My numbers went up so much.. maybe the oil I added freed things up a bit...

[Billy Ricks]

The oil had the effect of closing up tolerances. Ride it a while and see if the dry numbers improve.