Re: Evinrude 88HP?
Thats pretty much right on, however there is no specific pressure for compression readings on OMC-built engines. The service manuals read "no more than 15 psi variance between the highest and lowest reading cylinders." This is because of the tolerances in compression gauges, i.e. an expensive (hi-quality) gauge will probably read around 110 psi, but a "blu-lite" special gauge may only read 85 psi, yet the engine is in reality still healthy.<br /><br />-John