Jet john

[Paintman]

Not sure on either yet,got it flipped back over

 

[huntinfool]

Looks like factory

Come on Granger! About ready for a test run.

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[Paintman]

I'm using a Kawasaki 750 as motor and was wondering if I could attach a waterhose to the intake hose so I could test run at home,also where should I run my exast,out the bottom or out the back?

 

[flex]

I'm using a Kawasaki 750 as motor and was wondering if I could attach a waterhose to the intake hose so I could test run at home,also where should I run my exast,out the bottom or out the back?

Yes to the hose. Just don't rev it to much. I would run the exhaust out the back. So if it leaks you don't sink and it's an easy fix. Make one of those pee streams too!

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[CedarRiverScooter]

Not sure about a Kaw, but on Polaris you are supposed to start the motor 1st then turn on garden hose. Apparently water can backflow thru exhaust ports if motor isn't running 1st.

I'd get the exhaust to be as low as possible, as it will be loud. Make sure it routes above max waterline, so it can't siphon water.

 

[Paintman]

I'm thinking about using a flexible radiator hose for the exhaust, the rubber hose from the ski won't work,what says the jet john guru's

 

[CedarRiverScooter]

As long as it is same diameter, should work. It doesn't get very hot since it is water cooled exhaust.

 

[Paintman]

Got the exhaust run tonight,and fired it up,need to rebuild the carb,only way it would fire was pouring gas down the carb,can anyone post a pic as to where all the hoses go,

 

[CedarRiverScooter]

'Green Hulk' is a great website for PWCs. They will have the info you are looking for. I got a shop manual for my Polaris, that is very helpful.

On the carb rebuild, get an OEM kit, the aftermarket ones are junk. Consider a new fuel pump. It it goes lean you will burn pistons up.

 

[Paintman]

Motor is running good,started on the rear deck tonight

 

[Paintman]

Little more work,seat area is removable along with the deck

 

[Paintman]

Struggling with steering,any help

 

[flex]

Struggling with steering,any help

I think most of the converted jet boats I've seen use a "stick steer" like an air boat.

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[Paintman]

Ya I didn't wanna do a stick steering

 

[CedarRiverScooter]

Are you going to use jet-style 135 degree helm?

https://www.wholesalemarine.com/teleflex-sh5087p-jet-boat-135-steering-helm.html?gclid=COrOnfv6stMCFca1wAodr8UBNg

You might have to get a custom cable too.

 

[Paintman]

Lake tested,a little cavitation,hoping the front deck will help,was really rough on the water

 

[Paintman]

Headed to the lake friday,finally finished the decks,all aluminum

 

[CedarRiverScooter]

Looks great!

What did you end up doing for a steering helm?

 

[Paintman]

Used the helm that came with the console,get a turn and a half on the steering wheel

 

[Paintman]

Anything over half throttle cavitates some,gonna need a spoon,anybody have any designs,this is what I came up with