87 50HP Johnson compression

[beto]

What should a compression test on a 87 50HP Johnson read? Unknown hours, but 24 years old

 

[fireman57]

Re: 87 50HP Johnson compression

I would want it at least 85 and both within 10% of each other.

 

[dazk14]

Re: 87 50HP Johnson compression

With a decent compression tester and process they would show ~155psi new.

Good runners will turn up 125+psi on a decent gauge.