what prop pitch ?

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canman

Petty Officer 1st Class
Joined
Sep 11, 2006
Messages
247
i have a 1986 larson senza 16 foot bowrider . it is powered by a 1986 140 hp . johnson outboard . wide open it only turns up 4200 rpm . it has a 21 pitch . any ideas what pitch i should be using ? thanks
 
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Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: what prop pitch ?

Before we get into props we should address the issues on the motor in your other post. If all is OK with the motor, a 21 should be OK. Lets make sure the motor is running right first.
 
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walleyehed

Admiral
Joined
Jun 29, 2003
Messages
6,767
Re: what prop pitch ?

Deejay...take another look at the boat, then the engine in question, then look at the RPM....
If it's healthy at all a 21P should run well into the upper range. The 19P would be a band-aid and still top around 4500, maybe 4600...still 1200-1300 shy.
 
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canman

Petty Officer 1st Class
Joined
Sep 11, 2006
Messages
247
Re: what prop pitch ?

Dhadley said:
Before we get into props we should address the issues on the motor in your other post. If all is OK with the motor, a 21 should be OK. Lets make sure the motor is running right first.
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