what prop pitch ?

[canman]

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

 

[Dhadley]

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.

 

[deejaycee_2000]

Re: what prop pitch ?

19 pitch ......

 

[walleyehed]

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.

 

[canman]

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.