Evinrude 9.9 change to 15 hp carb

Kingkat33

Recruit
Joined
Nov 18, 2013
Messages
2
I have a 1992 evinrude 9.9 and want to put a 15 hp carb on it. I have been told that the 1992 model you only have to change the carb to get more hp. Is this correct? How do I identify the correct carb to use if it will work?
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: Evinrude 9.9 change to 15 hp carb

Go to shop.evinrude.com and look up your motor/s and check the part #'s.
 

SCduckhunter

Seaman
Joined
Sep 9, 2013
Messages
64
Re: Evinrude 9.9 change to 15 hp carb

If im not mistaken the intake manifold throat diameter is slightly larger on the 15 hp as well...they should all bolt the same, just a bigger diameter opening..i may be wrong others with more knowledge could clairify..
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: Evinrude 9.9 change to 15 hp carb

That is correct..............
 

tomhath

Master Chief Petty Officer
Joined
Dec 5, 2007
Messages
814
Re: Evinrude 9.9 change to 15 hp carb

Most people who've done the conversion are disappointed. You might get a little more speed at WOT only, but starting and idle suffer. And there's no difference at lower RPMs because the bigger carb throat doesn't help when the throttle plate is closed.
 
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