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 Custom longtail with jetski motor 
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Post Custom longtail with jetski motor
I mentioned I was going to try to build a long tail with a seadoo jetski motor in another thread. Well I have made a lot of progress since then and I am going to stick it in the pond this evening to see how it works or if the little 14 ft flat bottom still floats with it on there. I'll add a pic and I could go on and on about all the details but feel free to ask anything about it. And its not finished yet, I still have final wiring to do and make a few more brackets and a grill/ shroud for the radiator.


Wed Feb 24, 2016 2:44 pm
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Post Re: Custom longtail with jetski motor
that's pretty slick. i'm going to be watching this. let us know how it works out for you.

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Wed Feb 24, 2016 3:33 pm
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Post Re: Custom longtail with jetski motor
HOLY SHIT !!!


Wed Feb 24, 2016 3:36 pm
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Post Re: Custom longtail with jetski motor
Please be sure to video the maiden voyage attempt...

That could be entertaining!

Or, revolutionary!


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Wed Feb 24, 2016 3:41 pm
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Post Re: Custom longtail with jetski motor
Formidable weed wacker for sure! Hoping it will work well!

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Wed Feb 24, 2016 5:41 pm
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Post Re: Custom longtail with jetski motor
Well I'm still alive and the boat didn't sink so that's success right? Actually it did ok for where I am at with it. I did take some video I will upload in the morning. I was half expecting to have to build pods for the back but it's really not that bad. I wasn't able to keep track of how fast the radiator fan cycled but it never ran hot. Definitely still need to install skeg. It was kinda hard to drive with weight balance, fulcrum point, steering friction, and handle height still needing adjustment. I knew the power band of the two stroke would be a challenge to overcome but I need a little more room to open it up and fine tune adjustments. But at least I know now that this will work and I can keep moving forward with it.


Wed Feb 24, 2016 7:08 pm
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Post Re: Custom longtail with jetski motor
Nice!!


Wed Feb 24, 2016 7:19 pm
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Post Re: Custom longtail with jetski motor
And the 2016 MMT innovative award goes to this guy! Good luck with the rest of the build. Keep us posted

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Wed Feb 24, 2016 8:53 pm
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Post Re: Custom longtail with jetski motor
Cant wait to see vid.

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Wed Feb 24, 2016 8:56 pm
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Post Re: Custom longtail with jetski motor
I love it!


Thu Feb 25, 2016 8:56 am
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Post Re: Custom longtail with jetski motor
awesome

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Thu Feb 25, 2016 8:58 am
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Post Re: Custom longtail with jetski motor
Don't let it get away from you, then the hull might live up to it's name :lol:

Good work, keep it going!

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Thu Feb 25, 2016 9:45 am
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Post Re: Custom longtail with jetski motor
https://www.youtube.com/watch?v=KBKjRmLZl0U


Thu Feb 25, 2016 10:16 am
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Post Re: Custom longtail with jetski motor
Thats fucking awesome, that thing sounds like it has great potential to haul ass. :lol: I like it

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Thu Feb 25, 2016 11:08 am
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Post Re: Custom longtail with jetski motor
Thats some ingenuity right there

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Thu Feb 25, 2016 11:29 am
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Post Re: Custom longtail with jetski motor
That's awesome.


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Thu Feb 25, 2016 11:37 am
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Post Re: Custom longtail with jetski motor
Looks like you need a longer run and more prop. Very cool man!

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Thu Feb 25, 2016 12:23 pm
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Post Re: Custom longtail with jetski motor
Nice. Keep us updated.


Thu Feb 25, 2016 7:21 pm
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Post Re: Custom longtail with jetski motor
Hammer or a Cleaver Prop and a you should haul!!!

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Thu Feb 25, 2016 7:31 pm
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Post Re: Custom longtail with jetski motor
That's awesome! I'd just add a skeg like you mentioned and then run a larger prop like a hammer or big blade. Major props, that's an awesome idea. Oh an much more appealing than hardie's bullshit

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Thu Feb 25, 2016 7:53 pm
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Post Re: Custom longtail with jetski motor
Nice work! Keep us posted, can't wait to see you open it up!

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Thu Feb 25, 2016 8:17 pm
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Post Custom longtail with jetski motor
Nice. Big Country approved


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Thu Feb 25, 2016 8:45 pm
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Post Re: Custom longtail with jetski motor
Following !

H Finn

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Thu Feb 25, 2016 8:56 pm
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Post Re: Custom longtail with jetski motor
If you can get the right prop and keep it in the water, that bastard will scoot. Props to you for building that rig.

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Thu Feb 25, 2016 9:22 pm
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Post Re: Custom longtail with jetski motor
Thanks guys, I kinda just took a shot in the dark with the prop, it's a 10x8 from hill marine. I chose them because of their prop exchange. If I want to go bigger I can send this one back and just pay the diff in price and shipping. I need to keeping playing with it and get some more space before I feel comfortable getting a bigger prop. It felt like driving a dirt track car vs a civic. Even though I've never driven a dirt car lol.


Thu Feb 25, 2016 9:28 pm
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Post Re: Custom longtail with jetski motor
The good news is if you ever upgrade to a larger hull I'm pretty sure your trailer could handle it. That thing is gonna roll when you get it dialed in. I'd have to run the exhaust to the water though. Bad ass for sure

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Thu Feb 25, 2016 10:55 pm
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Post Re: Custom longtail with jetski motor
In Thailand they also use the 4 stroke rotax motors. But I'm curious to see that thing hit the power band. Bet you'll need to be sitting down!

It's simple. get a mud motor. shoot ducks in the face.


Fri Feb 26, 2016 6:00 am
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Post Re: Custom longtail with jetski motor
Looks good! I bet that thing will fly when you get a chance to open it up. Make sure you have a kill switch hooked up and connected to you. If it bites on something it could put you in the water in a hurry. A cavitation plate would be a good idea as well.


Fri Feb 26, 2016 6:44 am
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Post Re: Custom longtail with jetski motor


Fri Feb 26, 2016 7:18 am
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Post Re: Custom longtail with jetski motor
Your shoulder would thank you for a cav plate after a decent run. I've been following you since you started this, very nice. Keep us updated on how she runs. Wear your kill switch too, never know what's around the corner. Good build bud

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Fri Feb 26, 2016 9:32 am
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Post Re: Custom longtail with jetski motor

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Fri Feb 26, 2016 8:40 pm
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Post Re: Custom longtail with jetski motor
You'll enjoy a skeg as well. Makes it a little harder to turn but protects the prop from most stuff.

It's simple. get a mud motor. shoot ducks in the face.


Sat Feb 27, 2016 7:08 am
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Post Re: Custom longtail with jetski motor
I've seen one of these engines built into a what they called a jet Jon. It was a 14 ft Jon boat. It used the in gone and jet drive from a jet ski. That thing hauled ass

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Sat Feb 27, 2016 2:22 pm
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Post Re: Custom longtail with jetski motor
New to MMT, is there any more progress? Reall looked like a good project.


Thu Mar 10, 2016 11:26 pm
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Post Re: Custom longtail with jetski motor
Made a couple changes and added a few features so plan to test again tomorrow if the water isn't way too high. Added skeg, muffler, better mounting plate, safety switch lanyard, adjusted handle length and height, and radiator shroud.


Sat Mar 12, 2016 7:32 pm
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Post Re: Custom longtail with jetski motor
Please post a video. Very interested

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Sun Mar 13, 2016 9:19 am
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Post Re: Custom longtail with jetski motor
I'm also really interested in this, its a really cool idea i just subscribed

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Mon Mar 14, 2016 2:54 pm
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Post Re: Custom longtail with jetski motor
Been super busy with work so idk when I'll get a video up but it won't be super exciting but maybe something to laugh at. It ran hot and boiled most of my coolant out before I got to do much with it. Maybe because the muffler back pressure holding more heat in the exhaust water manifold idk. Also I think I do need to make some pods to get the front down so maybe it will steer worth a crap. I'm not giving up but I do have to take a break cause work is getting crazy.


Mon Mar 14, 2016 6:12 pm
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Post Re: Custom longtail with jetski motor
http://youtu.be/Frcgn7pirB4
Finally got the video on there, got some materials coming to make some changes to the cooling system and I'll try again.


Sun Mar 27, 2016 6:56 pm
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Post Re: Custom longtail with jetski motor
That thing has a shit ton of power. I can't imagine what it would do with more pitch

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