New Yamaha 25 and Zodiac Mk 2 stock prop ?

DEF

Cadet
Thread starter
Joined
Jul 11, 2006
Messages
26
Got some readings with my gps. Cruses real nice at 20 mph, about half throttle. Full throttle it goes 26.2 mph with 2 onboard. It dosen't matter if the wife sets in the front or back, with the wind or against the wind, uphill or downhill, it still goes 26.2 mph. Am I rpm limited? If so, would a prop with more pitch would help? The stock prop
Is 9 7/8 by 11 1/4 and the all up weight is about 700 lb.
 

Crownie2

Petty Officer 1st Class
Joined
Jul 26, 2006
Messages
378
Re: New Yamaha 25 and Zodiac Mk 2 stock prop ?

Sounds like you're horsepower limited!

Any idea what your RPM's are at WOT?

Bob
 

DEF

Cadet
Thread starter
Joined
Jul 11, 2006
Messages
26
Re: New Yamaha 25 and Zodiac Mk 2 stock prop ?

Don't know the rpm I should probably be happy with 26 mph in a Zodiac, but a little more speed is always nice to have.
 

Dmitry

Seaman Apprentice
Joined
May 20, 2009
Messages
38
Re: New Yamaha 25 and Zodiac Mk 2 stock prop ?

I have similar top speed with the same engine on a 12 ft Achilles.
 
Top