[Matt Plaster]

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.

 

[makin moves]

Post up a pic of the motor hanging on the back. Alot of knowledge here someone will have a solution.

 

[Matt Plaster]

Post up a pic of the motor hanging on the back. Alot of knowledge here someone will have a solution.

Will do.

 

[flyclimber]

How bad is the prop? Do you have a whale fin tab on it?

 

[Matt Plaster]

How bad is the prop? Do you have a whale fin tab on it?

Prop is pretty good. I just update original post with a pic

 

[Backcountry 16]

Put a fin on it it will act like trim tabs and push the bow down or add weight to the bow that should fix it for you.

 

[Battfisher]

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 not married anymore).

 

[Copahee Hound]

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.

 

[Matt Plaster]

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).

What size motor do you run on yours

 

[Matt Plaster]

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.

 

[Copahee Hound]

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.

 

[southerncannuck]

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?

 

[Matt Plaster]

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.

 

[southerncannuck]

I’ve got a 9.9 on my 154 and it planes easily. 19 mph solo.

 

[Guest]

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

 

[southerncannuck]

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.

 

[Matt Plaster]

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.

 

[Guest]

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.

Careful, the water pickup is above the cav plate on that old girl!

 

[southerncannuck]

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.

Don’t be afraid to trim the engine up a notch or two. That’ll give you more nose up

 

[Matt Plaster]

Careful, the water pickup it above the cav plate on that old girl!

10-4, she is old as crap but will crank first pull. Ugly yep, runs good so far......yep