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  1. ShallowRipper

    Harbor Freight 420cc Predator Engine 10ft Jet Jon Boat (33mph)

    Skepticism in this scenario is a super healthy response I wager. That same skepticism in my mind is what almost prevented me from making this boat. I tossed and turned my share of nights, and decided to take the risk to build it. It would be embarrassing to put a number to the amount of hours I...
  2. ShallowRipper

    Harbor Freight 420cc Predator Engine 10ft Jet Jon Boat (33mph)

    Agreed about the weight distribution! Since I was cannibalizing a 1032 jon boat, it was going to be too much work to move the heavily riveted further seat back. Between the motor, pump, gas, and the passenger, there is a fair amount of weight towards the stern. I can get a GPS readout next time...
  3. ShallowRipper

    Harbor Freight 420cc Predator Engine 10ft Jet Jon Boat (33mph)

    Thank you. Yes this utilized a jet ski pump from an old Yamaha. You're right on point about the lost floor space. It's more of a solo setup, I can fish comfortably with a reasonable amount of cargo. The build you're imagining sounds awesome. There's a group on FB called, "FRANKEN JET JONS" that...
  4. ShallowRipper

    Harbor Freight 420cc Predator Engine 10ft Jet Jon Boat (33mph)

    Thanks, I'm Finishing up the video with the detailed build that should clear up how it was made.
  5. ShallowRipper

    Harbor Freight 420cc Predator Engine 10ft Jet Jon Boat (33mph)

    This is a jet jon boat I recently finished with a 420cc Harbor Freight Predator engine (single cylinder, four stroke, air cooled). It pulls up to 33mph with room for a higher top speed, and can tolerate two grown men at over 28mph. I'll be uploading a detailed build video soon, including a long...
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