Quote:
Originally Posted by flounder_smacker
your uncles boat needs to be reproped
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He has tried every prop pitch and diameter and found the best one for his application. We both use our boat for crabbing and my boat has more power and gets better fuel mileage. His motor has had some major problems, (dumping fuel out of the breather) and I have heard of some other motors in the 90 to 115 range to have problems also.
A buddy of mine had a 115 Yamaha 4 stroke with less than 200 hours that had 30 psi compression on each cylinder. Mechanic said he could not figure out the problem. He changed his oil every 6 months and never run the motor over 4500 rpm. He went bought a 2 stroke and hasn't had any trouble since.
Warren