Your chain appears to be too tight. I'm eating dinner while watching this video, ducking and weaving at every tree limb and bridge. Nice build concept.
What a sweet little creek. Looks like around 30mph. Bloody hard to control a jet boat in narrow conditions when your instinct says back off the throttle in a corner.
Ok. Just found this video. Super cool ride. Reminds me of when I had one of the Briggs & Stratton 5hp 4 stroke outboards they used to sell. It barely moved my boat and people would hear me coming long before I got there. They would be standing on their docks because it sounded just like a lawnmower engine except it was a boat motor. Every one of em said we didnt know what was going on.
Pretty cool man, i've always loved this idea. No need for that clutch really, ditching it gains you the advantage of a slow troll all while getting rid of a failure point. Cheers
You should take that engine off and use a 2 or 3 cylinder liquid cooled snowmobile engine with the jack shaft/clutch setup. You could utilize the water you’re running on to cool the engine. Also you would see rpm’s a lot closer to 8k or so depending on what gears you used. Cool project though. Look like fun.
That creek looks like it be a trapping gold mine! Also that jet drive Jhon boat is awesome man! One day id like to build one myself! However im gonna use a snowmobile engine or a 600cc 4 cylinder crotch rocket engine i personally like a lot more power! But hey thats just me! The predator engine is awesome too just not enough top end!
I have a jet sky Kawasaki 755 engine, I already put one of these on but I can't increase the rotation of the turbine I put on a 100 cc motorcycle crown I haven't tested it yet and it's very difficult congratulations
You have a pretty interesting installation, and you’re learning by doing. Great stuff! With all them very low bridges your going under I myself am not sure I want to go much faster on that creek than your going right now. Looks like you’re having some good time fun in some pretty skinny water.
the bottom of the boat in the rear needs to be more v shaped where the drive is. you should see less cavitation problems. the ramp should be shorter and steeper heading into the intake and long and shallow going from front to rear. earned a sub tho. love it also, spin the drive much faster. like 10,000 rpm
Considering where he is using it I think its going plenty fast enough. I just saw this first time tonight and new sub too. Guys like this is why America. They cant stop us. We will find a way. For anything.
I like the idea of using the predator motors.. I think you need to put on a comet style torque converter and then run a chain drive from that to your pump so you can change gear ratios.
Ok, if you feel that the boat needs better handling in the corners, you can add a ruder. This would limit the depth you could run, so make a dagger board like ruder. You could hook it up to a lever control on the other side or tie it in to the one you already made to steer the jet. the ruder could allow for a faster and safer run.
Fine work! Really went better than I thought. What was the jet pump out of? And need to be on the throttle for jets to turn, slow down sooner to be on the gas around the whole corner.
Check out the Louisiana mud boats we make here You would be much faster with a skeg and prop We do it with a tunnel for inboards and fixed skeg they jump stumps run in mud and water lillies stacked up
@@noturfather1106 If you wanna keep it simple and low horse go air cooled so you can chew thru mud and debris Some around here put little automotive engines in and do a heat exchanger but it's way more complex basically they put the cooler inside the boat on floor with super large capacity of coolant and let the seawater run thru front pickup and dump out the back being fed just on gravity For the mud and log jumping I would go with air cooled
@@drifter9425 all great stuff man. I want to make a mud duck boat, small and light enough for me to drag up the banks from where I launch but with enough power to push me through the thick stuff and over dams without getting choked up with weeds. I was thinking my old 12 foot john boat would be a good candidate then maybe cannibalize the shaft and skeg from a longtail motor kit for my stern drive creation
Why are you running a clutch? No need, unless you have it set to only slip under a shock load as a safety for the engine. Also, I think that thing needs more gearing and I KNOW it needs a chain guard. Cool little boat though, would work great on the Tualatin near me
I have been slowly gathering parts for a simialar build. Have you considered a cvt style gokart cluch? They keep the engine in higher rpm range while allowing vairable gearing dependendent on load and would essentially give "neutral" while idling
@@zakn3954 i agree with what you are saying neutal isnt needed Was more thinking neutral for easy pull starts/vibration at rest etc. and cvt to get the optimum gear ratio at any given time/load/rpm.
with jet pumps brother its a;; anout high rpm thats why their all 2 strokes or 4 stroke street bike engines or turbos got to ditch the motor or change the gearing still cool though good job gbyaa!!!!!!!!!
To get better acceleration and torque you would need a bigger driven sprocket, small one on the engine and larger one on the propeller shaft. Unfortunately it looks as if there may not be enough room for a larger sprocket there.
Your chain appears to be too tight. I'm eating dinner while watching this video, ducking and weaving at every tree limb and bridge. Nice build concept.
Excellent work Dude... I was ducking at every low bridge!!
What a sweet little creek. Looks like around 30mph. Bloody hard to control a jet boat in narrow conditions when your instinct says back off the throttle in a corner.
The engine pulls the chain your tensioner should be on the push side of the chain
$80 for a quickie $120 for a whole half an hour but the memories last forever.... !!! 😮
Ok. Just found this video. Super cool ride. Reminds me of when I had one of the Briggs & Stratton 5hp 4 stroke outboards they used to sell. It barely moved my boat and people would hear me coming long before I got there. They would be standing on their docks because it sounded just like a lawnmower engine except it was a boat motor. Every one of em said we didnt know what was going on.
Pretty cool man, i've always loved this idea. No need for that clutch really, ditching it gains you the advantage of a slow troll all while getting rid of a failure point. Cheers
Ide go with a belt torque converter
I think you're doing really well.
You should take that engine off and use a 2 or 3 cylinder liquid cooled snowmobile engine with the jack shaft/clutch setup. You could utilize the water you’re running on to cool the engine. Also you would see rpm’s a lot closer to 8k or so depending on what gears you used. Cool project though. Look like fun.
Gotta use a 340 enticer motor! Bulletproof aye! Send it!
That creek looks like it be a trapping gold mine! Also that jet drive Jhon boat is awesome man! One day id like to build one myself! However im gonna use a snowmobile engine or a 600cc 4 cylinder crotch rocket engine i personally like a lot more power! But hey thats just me! The predator engine is awesome too just not enough top end!
Enjoyed the video. Nice run up and down the creek.
Thanks making another jet boat with 212cc engine, video coming soon
I have a jet sky Kawasaki 755 engine, I already put one of these on but I can't increase the rotation of the turbine I put on a 100 cc motorcycle crown I haven't tested it yet and it's very difficult congratulations
Cool! I don't know why but I kept duckin when you went under the bridges... 😅
You have a pretty interesting installation, and you’re learning by doing. Great stuff!
With all them very low bridges your going under I myself am not sure I want to go much faster on that creek than your going right now. Looks like you’re having some good time fun in some pretty skinny water.
Having Lots of fun learning
the bottom of the boat in the rear needs to be more v shaped where the drive is. you should see less cavitation problems. the ramp should be shorter and steeper heading into the intake and long and shallow going from front to rear. earned a sub tho. love it also, spin the drive much faster. like 10,000 rpm
The pump intake will have to be a whole lot cleaner for 10,000 rpms and no cavitation. That engine will never spin it up that fast.
Considering where he is using it I think its going plenty fast enough. I just saw this first time tonight and new sub too. Guys like this is why America. They cant stop us. We will find a way. For anything.
Pretty impressive!
this is bad ass dude
I like the idea of using the predator motors.. I think you need to put on a comet style torque converter and then run a chain drive from that to your pump so you can change gear ratios.
Ok, if you feel that the boat needs better handling in the corners, you can add a ruder. This would limit the depth you could run, so make a dagger board like ruder. You could hook it up to a lever control on the other side or tie it in to the one you already made to steer the jet. the ruder could allow for a faster and safer run.
About the same speed as a 10 horse outboard. Very cool.
Good effort
I'm a new sub and that boat is awesome I love it Catch you on another one my friend have a good day
Currently building another one at the moment stay tuned
Good job
Get on go power sports and get some performance upgrades for the motor and a torque converter set-up
Fine work! Really went better than I thought. What was the jet pump out of?
And need to be on the throttle for jets to turn, slow down sooner to be on the gas around the whole corner.
Kawasaki js 550 pump
The drive sounds so cool ! The motor not so much....something creative with the exhaust out the back or side maybe ? Just thoughts, Great work !
I’d love to have the build plans for this project!!!!
Check out the Louisiana mud boats we make here
You would be much faster with a skeg and prop
We do it with a tunnel for inboards and fixed skeg they jump stumps run in mud and water lillies stacked up
Those are where it's at. Would it be better to use an air cooled motor for one or a water cooled engine with a heat exchanger?
@@noturfather1106
If you wanna keep it simple and low horse go air cooled so you can chew thru mud and debris
Some around here put little automotive engines in and do a heat exchanger but it's way more complex basically they put the cooler inside the boat on floor with super large capacity of coolant and let the seawater run thru front pickup and dump out the back being fed just on gravity
For the mud and log jumping I would go with air cooled
@@drifter9425 all great stuff man. I want to make a mud duck boat, small and light enough for me to drag up the banks from where I launch but with enough power to push me through the thick stuff and over dams without getting choked up with weeds. I was thinking my old 12 foot john boat would be a good candidate then maybe cannibalize the shaft and skeg from a longtail motor kit for my stern drive creation
Bondo over the seam of the front of where jetski attaches to boat.
Now you should get with Red Beards Garage and build that engine. He's very knowledgeable.
Thanks stay tuned building another one soon
I like it
Doesn't seem to turn sharp enough but other than that seem pretty sweet
Pull that pull that governor put a rod in it from ARC and I think will fly
Where was this filmed???? What state ???
West Michigan
That pump needs to be spinning faster, you can hear that the engine isn't working very hard. Or you could put a more aggressive impeller in the jet.
With the clutch on there at idle when u let off the gas the shaft stops and thats y ur steering is bad at low speed
you think a go cart style torque converter would do anything different?
Not sure, building another one now might try that
Can I get some info on this type build
Cool build, but that loud motor would not work for me long term.
Why are you running a clutch? No need, unless you have it set to only slip under a shock load as a safety for the engine. Also, I think that thing needs more gearing and I KNOW it needs a chain guard. Cool little boat though, would work great on the Tualatin near me
I have been slowly gathering parts for a simialar build. Have you considered a cvt style gokart cluch? They keep the engine in higher rpm range while allowing vairable gearing dependendent on load and would essentially give "neutral" while idling
@@jacobgriffin2500 jet boats already are basically in neutral at idle; minimal directional controll
@@zakn3954 i agree with what you are saying neutal isnt needed Was more thinking neutral for easy pull starts/vibration at rest etc. and cvt to get the optimum gear ratio at any given time/load/rpm.
Looks like fun. But turns like a barge. If you could figure out a better steering solution it would be bad ass.
👍😎
Bro what state is this? Looks similar to Mississippi
Michigan
with jet pumps brother its a;; anout high rpm thats why their all 2 strokes or 4 stroke street bike engines or turbos got to ditch the motor or change the gearing still cool though good job gbyaa!!!!!!!!!
Kawasaki js 550
What is that odd noise
Does the clutch get hot?
Not to bad
To get better acceleration and torque you would need a bigger driven sprocket, small one on the engine and larger one on the propeller shaft. Unfortunately it looks as if there may not be enough room for a larger sprocket there.
well, if you run the same on both yu7our engine 'rpm will be your max .. just saying
where is the intake located?
Bottom of the boat
Motorcycle engine, use the transmission to help speed up or slow down your drive
Check out my motorcycle ski tow rope
Im not an expert or anything but I've seen people put torque converters on mini bikes and go karts and get better speed.
What was gearing
1:1
Sounds like belt slipage
This is so bad ass nice boat
How the hell do you steer that thing?
Joystick
Just to be safe
I would put some chicken wire over the inlet grate..
I ducked my head going under the bridge 😊 did you?😅
Yes haha
Sempal bro no commen k
With a square tunnel it will suck air.
It has a Kawasaki js 550 intake
Very cool 😎
1500 TOOOOOMORRORW 🤣
Prop needs a tunnel, if the rectangle box is where it is, because the water cant get to the prop quick enough.