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Author Topic:   17 Montauk 115 Yamaha

mikejana posted 07-10-2014 09:25 AM ET (US)
Time to replace the propeller on our 1989 Yamaha 115. It now has a 13 x 19 Yamaha Stainless, but we are moving the motor to our newly acquired 1989 Montauk 17 [from a 1961 EASTPORT]. We haven't kept up with the advances in this new millennium. Suggest a new propeller.
jimh posted 07-10-2014 01:00 PM ET (US)
I suggest you move the Yamaha 115-HP engine to the MONTAUK 17, and retain the present propeller. Then collect some data about engine speed and boat speed. From that data you can decide if a change is needed, and in what direction. I don't think there have been any really significant advances in propeller design since c.1989 that would revolutionize the performance of a 115-HP engine on 17-foot boat for typical operation in the usual circumstances.
deepwater posted 07-10-2014 03:58 PM ET (US)
That Montauk will fly with a 115,,get pics ^@^ ya know we are living on her through you guys

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Author	Topic: 17 Montauk 115 Yamaha
mikejana	posted 07-10-2014 09:25 AM ET (US) Time to replace the propeller on our 1989 Yamaha 115. It now has a 13 x 19 Yamaha Stainless, but we are moving the motor to our newly acquired 1989 Montauk 17 [from a 1961 EASTPORT]. We haven't kept up with the advances in this new millennium. Suggest a new propeller.
jimh	posted 07-10-2014 01:00 PM ET (US) I suggest you move the Yamaha 115-HP engine to the MONTAUK 17, and retain the present propeller. Then collect some data about engine speed and boat speed. From that data you can decide if a change is needed, and in what direction. I don't think there have been any really significant advances in propeller design since c.1989 that would revolutionize the performance of a 115-HP engine on 17-foot boat for typical operation in the usual circumstances.
deepwater	posted 07-10-2014 03:58 PM ET (US) That Montauk will fly with a 115,,get pics ^@^ ya know we are living on her through you guys