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Old 06-09-2009, 12:31 PM
fnr1011 fnr1011 is offline
Join Date: Jun 2009
Rep: 10 Posts: 1
Location: Ocala, FL
Converting Yamaha Traditional Prop to Jet Drive

I have a 2004 Yamaha 115 HP prop engine. I am considering converting it to a jet drive. Does anyone know how much trouble it is, what are the pros and cons of doing it, and what the approximate costs might be to do it. Thanks a lot.
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Old 06-23-2009, 04:42 PM
ondarvr ondarvr is offline
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Join Date: Dec 2005
Rep: 506 Posts: 1,316
Location: Monroe WA
The switch is easy, the cost will be around $2,000.00 for the pump.

Pros... no prop to ding, safer, shallow water is no problem.

Cons... 30+% loss of power, fuel consumption goes up by the same amount or more, need to change the transom height (taller), it will suck up anything in the water (weeds, a leaf, rocks, sand) and can become plugged up.

I run shallow rocky rivers and thereís no way to get around without a jet pump, but if I didnít need one, Iíd run a prop all the time.
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