97 Mercury 125 Low Top Speed???

Morpheus78

Cadet
Joined
Jul 20, 2009
Messages
29
I opened up my setup this past weekend for the first time. I have a 17 foot center console and the engine on it is a 125 Mercury. This thing should FLY!! I was guessing id get 50mph on it, but the GPS says between 32 and 34 mph. Anyone know any reason why this might be?
 

jcsercsa

Captain
Joined
May 21, 2007
Messages
3,401
Re: 97 Mercury 125 Low Top Speed???

Morpheus78 you need your rpms and what prop size and pitch, and also this might be better asked in the prop forum !! John
 

pjband1

Cadet
Joined
Oct 30, 2007
Messages
6
Re: 97 Mercury 125 Low Top Speed???

I would check to see if motor is running on all cylinders. may not be getting top end do to minus one cylinder.motor may sound good and seem to be ok but may be minus a cylinder.then id look into prop resize.
 
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