92 Johnson ocean pro 225 low compression in 1 cylinder #15lbs??

[Skyla316]

The other 5 cylinders have between 80-90 psi.
The motor has been sitting for a while.

I'm wondering since compression in 1 cylinder is that low is it a broken reed? Dropped cylinder?

Seems to be too low for a stuck ring?

I will be taking off the head tomorrow to check the cylinder but wanted some feedback ad if it was low in the 60-70 psi range I would assume stuck ring but doesn't seem the case.

Thanks in advance!

 

[Faztbullet]

Re: 92 Johnson ocean pro 225 low compression in 1 cylinder #15lbs??

Cylinder problem.....

 

[racerone]

Re: 92 Johnson ocean pro 225 low compression in 1 cylinder #15lbs??

A broken reed valve does not have anything to do with compression in the cylinder !

 

[Skyla316]

Re: 92 Johnson ocean pro 225 low compression in 1 cylinder #15lbs??

Oh OK, something a friend mentioned.

 

[racerone]

Re: 92 Johnson ocean pro 225 low compression in 1 cylinder #15lbs??

When you have the head off and you turn the flywheel you will see the piston close off the ports.--------------That is when compression starts.----Reed valves are not in the picture then.

 

[kenmyfam]

Re: 92 Johnson ocean pro 225 low compression in 1 cylinder #15lbs??

Head off and inspect what you find. Post photos if necessary.