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I have two- two stroke outboard motors with low compression. 1979 85HP V4 and 1979 150HP V6. The V4 has 90 psi on all cylinders and the V6 has 60 psi on all cylinders. I am currently using the 85HP on a 17' deck boat that runs about 29 miles/hr WOT. I recently purchased the 150HP used but...
I have been using the boat for two seasons but it was hard to start last season. Once running it ran fine (about 30mph WOT on a 17' trihull) I had work done about 3 years prior and they said it has good compression at 110psi. I have replaced all electronics on motor (CDIs, rectifier, coils)...
