Re: Compression of 1978 15 hp Johnson Seahorse


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Posted by Spike (24.58.64.136) on August 15, 2005 at 07:22:05:

In Reply to: Compression of 1978 15 hp Johnson Seahorse posted by Larry on August 14, 2005 at 17:25:59:

Rule of thumb most outboards at least 100 lbs
is considered minumum ideal pressure.
Within 10% between cylinders.Motor will run with less.
If low or uneven try a decarb treatment.


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