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Topic: Adventure Island Gas Engine Mount  (Read 8590 times)

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Great Bass 2

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I am about 1/2 way through this project. Wanted to add a Suzuki 2.5 HP gas engine to my AI as a backup for those Soquel Hole chrome hunts. Decided to use one of PatR's scotty mount brackets as the primary connection. Here were the design constraints:
1. Easy to remove and install with only a screw driver
2. No holes in the hull or AKA bars
3. Minimum weight
4. Engine force applied to the strongest part of the hull.
5. Able access downrigger, plano box and fold the ama back with engine installed

I used 3/4" marine plywood and all stainless steel hardware. Going to finish with varnish over epoxy. It's been a journey and a really fun project.
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raydon

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Great idea.  Can't wait to see it in action.  Next stop--Farallons?  I saw a guy at TC that put that same engine on his PA.  The shaft was too short and the prop wasn't submerged entirely under the water.  He sounded like  a kid blowing bubbles in the bathtub.  I'm sure your did your homework and know your shaft is ok.
 


Great Bass 2

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Great idea.  Can't wait to see it in action.  Next stop--Farallons?  I saw a guy at TC that put that same engine on his PA.  The shaft was too short and the prop wasn't submerged entirely under the water.  He sounded like  a kid blowing bubbles in the bathtub.  I'm sure your did your homework and know your shaft is ok.

It's designed to be a 14-15" transom which is what short shaft engines are. The problem with the AI is the opposite, it rides really low in the water so more shaft is in the water than ideal which reduces top speed and exposes the engine to more water spray.
1st Place 2007 Kayak Connection Father's Day Derby
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1st Place 2011 Lake Berryessa Salmon Slam
1st Place 2011 Pay It Forward Taco Throw Down
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1st Place 2012 & 2013 Central Coast Custom Lure Contest
1st Place 2013 The Simply Fishing Tournament


novofish

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Sweet, the Ai will be a real multi powered craft with the power addition. :smt001
Might as well power up since you need numbers anyway :smt005
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piski

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Fun project, looking forward to seeing the results.
Catch & Repeat


Kurious

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Great idea. Ill consider add a gas engine soon.
Kurious George


Mienboy

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I love how innovative some of you here are on the forum, but wouldn't a used 12' Klamath cost around the same as a new motor and i think would be a little safer? Just saying. Id love to read your tuna reports on your powerd ai but gas motor in such tight quarters.im just always a little cautious
My biggest worry is that my wife(when I'm dead)will sell my fishing gear for what I said I paid for it


SteveS doesn't kayak anymore

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I did a similar thing for my mount, but used raikblaza attachments. Suffered from rotation issues, so ended up adding two turnbuckles that go to the cleat ( now tie point thing) just in front of the aka. That seemed to solve that.


FishingForTheCure

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I have RailBlaza mounts on my bars too.  Interesting overcome to the problem.  Might have to consider that.  I have a little 2hp E-rude that weighs about 15#.

Bill
« Last Edit: December 22, 2014, 11:03:18 AM by FishingForTheCure »


Great Bass 2

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I did a similar thing for my mount, but used raikblaza attachments. Suffered from rotation issues, so ended up adding two turnbuckles that go to the cleat ( now tie point thing) just in front of the aka. That seemed to solve that.

Steve, I anticipated the torque/rotational force issue and bought a SS turnbuckle. In the simulations I did, the force pulled the top of the mount to the stern so one turnbuckle would correct that issue, correct? Can you post a picture of your mount?

Thanks! Scott
1st Place 2007 Kayak Connection Father's Day Derby
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1st Place 2013 The Simply Fishing Tournament


Great Bass 2

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I love how innovative some of you here are on the forum, but wouldn't a used 12' Klamath cost around the same as a new motor and i think would be a little safer? Just saying. Id love to read your tuna reports on your powerd ai but gas motor in such tight quarters.im just always a little cautious

The AI with one or 2 amas is super stable. I've been in 8-10' swells and it is rock solid. The only problem I heard from Hai is the hull takes on water through the rudder control holes. May install a bilge pump in the future. I am going to buy a real boat in the next few years.
1st Place 2007 Kayak Connection Father's Day Derby
1st Place 2007 New Melones Trout Derby
1st Place 2011 Lake Berryessa Salmon Slam
1st Place 2011 Pay It Forward Taco Throw Down
1st Place 2011 Albion Open
1st Place 2012 & 2013 Central Coast Custom Lure Contest
1st Place 2013 The Simply Fishing Tournament


AlexB

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I love how innovative some of you here are on the forum, but wouldn't a used 12' Klamath cost around the same as a new motor and i think would be a little safer? Just saying. Id love to read your tuna reports on your powerd ai but gas motor in such tight quarters.im just always a little cautious

There's nothing safe about taking a 12 foot Klamath in the ocean.


krusty

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I love how innovative some of you here are on the forum, but wouldn't a used 12' Klamath cost around the same as a new motor and i think would be a little safer? Just saying. Id love to read your tuna reports on your powerd ai but gas motor in such tight quarters.im just always a little cautious

The AI with one or 2 amas is super stable. I've been in 8-10' swells and it is rock solid. The only problem I heard from Hai is the hull takes on water through the rudder control holes. May install a bilge pump in the future. I am going to buy a real boat in the next few years.

I also noticed that the rear round hatch of Hai's AI gets submerged while he is motoring. Things could go bad real fast if that hatch leaks.


SteveS doesn't kayak anymore

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I will post pic tomorrow or the next day-- not at home right now.

But yes- the top rotates toward the stern. One turnbuckle works more than fine - put it on the motor side. I ran another on the other side, just 'cause i suppose.
I used a thru bolt with an eye on the top of my the wood facing forward-- that turnbuckle just runs down diagonally to the cleat just infront of the aka xbar.
I run the same 2.5hp suzuki btw.

The rear hatch does submerge if you stay in the rear seat (and if you use more than about 1/2 throttle). Looks like the max speed i can get is about 8mph anyway, I hit close to that around 1/2 throttle, but start to submerge the rear hatch.
Shifting your weight forward, or even sitting on the front xbar solves that issue, but its a balancing act.
There's a guy on the hobie forum that made a foam part to add to the rear of the hull to solve this as well-- that seems like more work than i want to deal with however!