What compressionis good?

[Greenjello]

I have a 2005 25hp bigfoot what is a good pressure. I did a check yestureday and ended up with 180 on both cylinders that seems high does anyone know what it should be or a place I can go to get that information?

 

[emckelvy]

Re: What compressionis good?

I wouldn't worry about high compression as much as low or uneven. Yours are not uneven and that's good.

The high reading could just be due to calibration of your compression gage.

On the off-chance you have a bit of carbon buildup, do a decarbonizing treatment with Seafoam or equivalent cleaner.

Read about that here:

http://forums.iboats.com/showthread.php?t=158076&highlight=seafoam

HTH.........ed