Mercury 115hp outboard motor on a checkmate 17ft boat.

maxin it out

Banned
Joined
May 1, 2011
Messages
6
Hello! I am seeking info ref. my 1988 checkmate boat with 115hp mercury outboard motor. When I took boat out today, went to throttle up engine, the boat speed up to 20mph, would not plane out with trim. the boat went to about 6200rpm and boat just did not want to get out of its own way......I put a new prop on which Im not sure if its part of the problem. prop I bought was 12 3/4 x 21-rh. prop was purchased per specs on mercury. Do you think it could be a spindle or lower end gear problem. Thanks for all your help.
 

1979checkmate

Petty Officer 1st Class
Joined
Jan 15, 2011
Messages
261
Re: Mercury 115hp outboard motor on a checkmate 17ft boat.

21 should be correct/ (i have a 17 ft trimate II with a 115 and 21p stainless). Is the prob hub new too?
 
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