Compression, 1979 6 hp Johnson

[gayle23]

I have a 1979 Johnson 6 hp outboard which I have had for about 20 years. It has been well maintained and runs great. I recently did a compression test and found compression to be 60 and 61 psi. I am thinking that is on the lower end of 0-k. Should I re-ring this motor now, or wait until compression is lower??? Thanks

 

[racerone]

Re: Compression, 1979 6 hp Johnson

All gauges read different values.------Does the carburetor hiss a wee bit at idle ??------No need to worry at all.

 

[OptsyEagle]

Re: Compression, 1979 6 hp Johnson

It has been well maintained and runs great.

I would wait until it doesn't run great before I would take up that task. I can't really see the rings on both pistons degrading at the exact same rate, so I suspect the problem is in your guage.

 

[boobie]

Re: Compression, 1979 6 hp Johnson

Have you done a good de-carb on it lately ??