Quote:
Originally Posted by tjspei
Thank you for the replies. What should the compression be? I am going to check out the motor this weekend.
Tim
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I'd say about 115 psi or more if cranked with the throttle wide open, but what's more important is the variation between cylinders. I think my old '75 115 Evinrude generally checked between 115 and 130. The smaller the variation, the smoother the engine will run. Variation should generally not exceed 10%.