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Hey guys, I am not new to boating but am new to the micro skiffs. I've got a Gheenoe 15'4 that I just put in the water today. I've got an older 9.5 Johnson on it and I could not get up on plane. I also was getting alot of cavitation when I tried to get to full throttle. My first thought is it is a weight distribution issue. Any thoughts. Motor is short shaft, not running a jack plate or any kind of trim tabs at the moment.
 

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I've had a 15'4 since 1979. Only way I could make it plane out was to put a whale fin/hydrofoil on it (or put a bunch of weight up front - but I'm no married anymore).
In the words of Charles Barkley, "That's terrble"

For no more than a new prop would be for that motor, I'd put a new prop on it before a hydrofoil. Then add a heavily weighted cooler, or another person, up front. If those don't fix it, then a hydrofoil. A new prop and weight up front fixed my old Gheenoe, but it would still blow out on high speed turns without a jack plate.
 

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Discussion Starter #10
In the words of Charles Barkley, "That's terrble"

For no more than a new prop would be for that motor, I'd put a new prop on it before a hydrofoil. Then add a heavily weighted cooler, or another person, up front. If those don't fix it, then a hydrofoil. A new prop and weight up front fixed my old Gheenoe, but it would still blow out on high speed turns without a jack plate.
Anything special to look for in a new prop as far as pitch and such.
 

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The only pitch I know about is in baseball. I just replaced mine with the factory prop and it worked, with the help of weight up front. There are plenty of Gheenoe and prop gurus that will hopefully chime in here to help with you figure out what will give you more bite. I just like eliminating the cheapest problems before I bust the piggy bank, or drill into my motor.
 

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Hey guys, I am not new to boating but am new to the micro skiffs. I've got a Gheenoe 15'4 that I just put in the water today. I've got an older 9.5 Johnson on it and I could not get up on plane. I also was getting alot of cavitation when I tried to get to full throttle. My first thought is it is a weight distribution issue. Any thoughts. Motor is short shaft, not running a jack plate or any kind of trim tabs at the moment.
Does the engine make full power? Any idea of the RPMs? And what’s that hanging off the rear of the lower unit?
 

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Discussion Starter #13
Does the engine make full power? Any idea of the RPMs? And what’s that hanging off the rear of the lower unit?
Yea it seems to make full power, it is a loaner motor but to be old it runs like a top. As far as that thing off the back I honestly have no clue why they put that on there. They used it as a kicker trolling some so not sure if it had a purpose for that or not.
 
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Yea it seems to make full power, it is a loaner motor but to be old it runs like a top. As far as that thing off the back I honestly have no clue why they put that on there. They used it as a kicker trolling some so not sure if it had a purpose for that or not.
It is for a tie bar to attach to main motor for steering
 

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Can you take that thing off the lower unit and give it another run? The motor sits 2 1'2" lower than mine which means you're dragging a lot of metal through the water. That sure can't help.
 

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Can you take that thing off the lower unit and give it another run? The motor sits 2 1'2" lower than mine which means you're dragging a lot of metal through the water. That sure can't help.

Yea I can, I was just really short of time today but was dying to put it in the water. The motor sits lower than I like also. I may have to put a small riser on the transom.
 
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