115 Merc hole shot

R

Rebbasser

Cadet
Joined
Sep 16, 2003
Messages
9
Need some advice, guys. I have a 2001 115 Merc that runs fine, but when I hammer down it slowly accelerates, the RPM slowly increases and it gets up on the plane. The RPM only goes up to about 4000 RPM at WOT, and according to the shop manual it should be 4750-5250 RPM. I'm thinking it is the prop-it is a Merc Laser II with a 26 pitch-and I'm thinking I need a smaller prop. This is the prop that fame with the boat. Any advice will be greatly appreciated.
 
I

inlineal

Seaman Apprentice
Joined
Sep 19, 2005
Messages
46
Re: 115 Merc hole shot

Most marine shops have prop charts that give different sizes for horsepower/boat size..etc...I would consult a local dealer in your area..26 pitch sounds high ..
 
D

danie

Petty Officer 2nd Class
Joined
Apr 11, 2005
Messages
154
Re: 115 Merc hole shot

Much too high.<br />Depending on the type of boat were talking 21/22 pitch.
 
R

Rebbasser

Cadet
Joined
Sep 16, 2003
Messages
9
Re: 115 Merc hole shot

Thanks, guys. inlineal, I called the dealer and was told that particular boat/engine combo needs a 24 pitch prop. Thanks for the idea!
 
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