Rebuilding yamaha 40 hp outboard

My pressure check reads about 85 per cylynder. Friends say yamaha 40 are work horses. But my pressures should be higher 100+ is good. Motor still runs but is a 97 one owner.Should I rebuild or go new. Really can,t afford new right now but don't want to throw away money on prolonging the inevadiable. How many years should I expect a rebuild to get me, and the average cost.by a registered dealer.

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Oct 09, 2011
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compression
by: Anonymous

Factory says no more than 15 psi difference between any two cylinders.....

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