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post #1 of 14 (permalink) Old 07-29-2011, 03:38 PM Thread Starter
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jet boat question

i'm looking at a 18Ft g3 tunnel hull with a jet for the allegany river.can a 20hp "kicker" be put on for our 20hp limit lakes? i figgure i'll have to tiller steer it,but no big deal.any one seen or run one like this?
http://www.g3boats.com/Gator_Tough_1..._CCJ_1860_WOFJ

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post #2 of 14 (permalink) Old 07-29-2011, 03:49 PM
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Re: jet boat question

If I'm reading this correct your asking if you can use a 20hp motor on a 20hp lake????
If you mean a 20hp along side of a big motor just make sure that the motor has the correct shaft for the transom. Long shaft or short shaft.

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post #3 of 14 (permalink) Old 07-29-2011, 03:56 PM Thread Starter
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Re: jet boat question

oops,yes next to a 80-90 hp jet.thanks!

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post #4 of 14 (permalink) Old 07-29-2011, 04:15 PM
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Re: jet boat question

another thing where ever you are planning on mounting the 20hp along side the 80-90 hp make sure the transom is solid enough to do so.
I have mounted a 9.9hp along side my 35hp and ran it with a tiller worked fine.

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post #5 of 14 (permalink) Old 07-29-2011, 05:11 PM Thread Starter
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Re: jet boat question

i was also wondering if the jets can be swapped back into a prop drive by just changing the lower unit? or how do the jets work on lakes?

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post #6 of 14 (permalink) Old 07-30-2011, 01:18 AM
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Re: jet boat question

You can swap lower units, but it is pretty involved.. The height of a jet outboard is about 5" higher than the same motor with a prop lower unit.. Therefore, you would have to change the height of your motor everytime you switched. A solution would be a jackplate, although due to the offset that these create, you might not get the best performance.. The g3 ccj's have a raised transom to compensate for the 5" needed.. I would assume you would need a long shaft kicker if you decided to do it..

I have a g3 1756 with a 90/65 yamaha four stroke on it, and my cousin runs a 1860 ccj with the 90/65.. you'll love the boat.. The only complaint I have about mine is how much weight is in the back of the boat with a standard center console rather than the forward console the ccj's have.. It definitely squats a little with 2 guys, fuel, and a 400lb motor back there, but once it's on plane it rides along fine
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post #7 of 14 (permalink) Old 07-31-2011, 01:10 AM
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Re: jet boat question

With the raised transom on the G3 jet hulls you might have issues getting the kicker mounted low enough. I would give JC Nuss at Lakeside Marine (717-545-5461) a call. When I was looking to buy a jet boat he was the most helpfull person that I talked with at any dealership.

Good luck, Tony
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post #8 of 14 (permalink) Old 07-31-2011, 01:16 AM Thread Starter
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Re: jet boat question

thanks guys! i got looking at a lowes also,i'm not buying till next year so i got time to shop around.

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post #9 of 14 (permalink) Old 07-31-2011, 02:06 AM
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Re: jet boat question

There's no reason to use a 20 hp as a kicker. A, it will overload your transom, B, 20 hp isn't going to plane a boat from a kicker position, especially with a much larger motor beside it. You may push a lot of water, but you're not going to go any faster than waterline speed so there's no reason to deal with a 20 hp. Anything 5-10 hp will suit you fine, and be easier to handle, remove, etc. The lighter the kicker, the less it will affect the handling of your big motor.

Why you'd want to convert it to a prop for lake use puzzles me, a jet will work in any water?
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post #10 of 14 (permalink) Old 08-02-2011, 01:27 AM Thread Starter
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Re: jet boat question

i heard the waves make it cavatate too much,sucking air instead of water as the boat hits oncoming waves.
as for the 20 hp motor,most lakes around here are 20 hp limit,hence the 20 hp.i guess i'm trying to have my cake and eat it too!i want to run the river with the jet,and hit auther and wilhelm with the same boat.

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