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Bill Kiene
 
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Default For a friend..........

Hi All,

A friend just bought a new J14 Carolyna Skiff for mostly small flat water
fishing. He has a question about outboard motor mounting height? We run in
some shallow water so he want to get it as high as practical:

"Just purchased a J14 (w/20" transom), and I love it. I am mounting a Yamaha
25 long shaft on it, and the large cavitation plate is about 2 1/2 inches
below the bottom of the boat. I have heard that the best position would be
even with the bottom. Does anyone have any thoughts on this. Is there a
transom riser I can purchase, and if so where?

Thanks in advance.

Brett"




--
Bill Kiene

Kiene's Fly Shop
Sacramento, CA
www.kiene.com


  #2   Report Post  
Bob La Londe
 
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Default For a friend..........

Do a search for "jack plate". There are a number of model from those for
very small outboards to vary large. They also have units that can be adjust
with a hydraulic on the fly.

The jack plate does a couple of things especially with boats that have an
essentially square hull to transom transition. It moves the motor back away
from the transom and can improve perfermance when you raise the motor
slightly becasue you get the same effect as a stepped transom hull
transition or a small tunnel cut type hull. The water is actually higher
further back from the transom than it is right at the transom allowing you
to raise the motor.

The jack plate also allows you to dial in your motor for the ideal position
for your type of running.

With my Baker tunnel the jack allows me to substantially raise the engine
when running the Colorado River and dodging sandbars. Those sandbars I
can't see until I am on them are deep enough I can shoot right over them
with the motor up like that. I can't run WOT with it like that though. The
engine won't get enough water to cool properly, so for faster speeds in
clear areas I lower the motor, and for that ultimate hole shot I lower the
motor just slightly more and trim it up under the boat.

For your buddy with the Carolina Skiff I would suggest looking at a manually
adjusted jack plate for his motor, although the benefits of adding a
hydraulic one with trim controls might benefit his top speed a little too
since most smaller outboards do not have power trim.

I know Cabelas has some available, but i bet if you do a search you can find
many sources. The ones I have seen run from only a couple hundred dollars
to a little over a thousand for ones like the one I am using on my 200HP
Mariner on the Baker tunnel.


--
Bob La Londe
Yuma, Az
http://yumabassman.4t.com



"Bill Kiene" wrote in message
. com...
Hi All,

A friend just bought a new J14 Carolyna Skiff for mostly small flat water
fishing. He has a question about outboard motor mounting height? We run in
some shallow water so he want to get it as high as practical:

"Just purchased a J14 (w/20" transom), and I love it. I am mounting a

Yamaha
25 long shaft on it, and the large cavitation plate is about 2 1/2 inches
below the bottom of the boat. I have heard that the best position would be
even with the bottom. Does anyone have any thoughts on this. Is there a
transom riser I can purchase, and if so where?

Thanks in advance.

Brett"




--
Bill Kiene

Kiene's Fly Shop
Sacramento, CA
www.kiene.com




  #3   Report Post  
Woodchuck
 
Posts: n/a
Default For a friend..........

5 inches is a lot to make up with adding anything like a jack plate! Also
as you raise the engine the center of gravity goes up too. I it was mine I
would ONLY use a 20" engine.


"Bill Kiene" wrote in message
. com...
Hi All,

A friend just bought a new J14 Carolyna Skiff for mostly small flat water
fishing. He has a question about outboard motor mounting height? We run in
some shallow water so he want to get it as high as practical:

"Just purchased a J14 (w/20" transom), and I love it. I am mounting a

Yamaha
25 long shaft on it, and the large cavitation plate is about 2 1/2 inches
below the bottom of the boat. I have heard that the best position would be
even with the bottom. Does anyone have any thoughts on this. Is there a
transom riser I can purchase, and if so where?

Thanks in advance.

Brett"




--
Bill Kiene

Kiene's Fly Shop
Sacramento, CA
www.kiene.com




  #4   Report Post  
Harry Krause
 
Posts: n/a
Default For a friend..........

Bill Kiene wrote:

Hi All,

A friend just bought a new J14 Carolyna Skiff for mostly small flat water
fishing. He has a question about outboard motor mounting height? We run in
some shallow water so he want to get it as high as practical:

"Just purchased a J14 (w/20" transom), and I love it. I am mounting a Yamaha
25 long shaft on it, and the large cavitation plate is about 2 1/2 inches
below the bottom of the boat. I have heard that the best position would be
even with the bottom. Does anyone have any thoughts on this. Is there a
transom riser I can purchase, and if so where?

Thanks in advance.

Brett"


A jackplate might work, but on a boat that small, why would he want to
mount any engine with a 25" long shaft? He's better off getting a small
motor more suitable for that really small boat.

What hp engine does he have?






--
* * *
email sent to will *never* get to me.

  #5   Report Post  
Bill Kiene
 
Posts: n/a
Default For a friend..........

Harry,

He has a Yamaha 25hp outboard long shaft (20") for a 20" transom. His
Carolina Skiff is suppose to be for a 20" motor but when he hangs it on
there, the cavitation plate it is actually 2.75" below the bottom of the
boat. We run in shallow water and would like to have it mounted as high as
possible.

His manual says that the cavitation plate/disc should be either even with
the bottom of the boat or 1" below.

We were looking for an easy/cheap way to raise his motor 2.75"?

Bill Kiene


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