Old boat need help

[Bolynn]

Ok here is the deal i bought this boat, evinrude 1982 75 hp. The bad thing is I rebulit the carbs. then come to find out it has low compression in the top cylinder it reads about 95, then the bottom two read 125-130. I need advice what I might be able to do, the motor does not like to ideal low or take off very well. But once going it runs across the water just fine motor sounds fine, just money is tight and im a college student so if i could get some help please let me know what yall think

 

[tashasdaddy]

Re: Old boat need help

Decarb

i would do a decarb, then if it did not come up, the head gasket.
Decarb, take a can of seafoam put 3/4 of it in the gas tank, with only 1 gallon of premixed gas. put the rest in a spray bottle. start the engine, and let it come up to temperature. then remove plugs, and them some real good shot of seafoam into the cylinders, replace plugs, let sit 15 minutes. restart, and spray the rest of the seafoam into the carbs, so the the motor almost stalls, wait and repeat until the seafoam is gone.then take for a wide open spin. then put in new plugs, ad premixed gas to the tank, and take it for a wide open throttle spin. it is going to smoke like a house on fire, during this process.

afterwards compression.recheck
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