82' Merc 115 inline 6, no power, 15MPH at 5200 RPM


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Posted by Jeff T. (64.166.25.234) on July 14, 2005 at 15:19:44:

I recently purchased a Larson 16.5' boat with a 82' Merc 115 ELPT and took it out to find it only goes 10MPH and bogs when I give it gas. Took it to a boat mechanic and have good spark, timing and gas. Mechanic rebuilt carbs, still only about 15MPH. took it back to mechanic and he rebuilt fuel pump, I will try again this weekend but I am thinking it has to do with the prop. It had trim tabs on it before, previous owner took them off. At 15MPH, 5200 RPMs, the boat comes out of the water, trim the motor up and it gets air.
Any sugestions on what prop should be on the boat or what could be wrong will be greatly appreciated.

Thanks in advance,
jeff


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