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  1. kevbo

    24/7 Innovations Hull?

    The rider stands at the rear on stand up skis so his weight is part of the skis balance. A full length Superjet can accommodate larger than average riders. Most smaller guys need to shorten the rear so they can get the nose up. Getting it to plane and keeping it from porpoising is the challenge...
  2. kevbo

    Prop recommendations

    Bore your nozzle first and then see if the impeller needs to be bent.
  3. kevbo

    Dual red top 46s SOLD

    They should call them “no venturi”.
  4. kevbo

    760 dual 38 carb turning

    Probably also bore the nozzle or bend the impeller some.
  5. kevbo

    Westcoast Blaster Pipe

    Those Westcoast pipes need to be mounted very well or the V-band clamps will break.
  6. kevbo

    Help with what size jets

    We use to get by with a 65gram spring and opening the top screw 2 turns out. Now I would add a larger main and pilot jet and leave the stock spring in it.
  7. kevbo

    650sx rebuild and restoration.

    All very true if you fly an old Diamond two seater!
  8. kevbo

    js550/701 conversion exhaust woes

    With a good tuned pipe, waterbox flow is not an issue since the pipe needs some back pressure to work. The breadbox has no tuning so it needs less downstream restriction to work best. A stock 61x cylinder works well with the breadbox. A pipe is worth about 3 MPH. A higher ported cylinder with...
  9. kevbo

    Carburetor (specs) Database: SuperJet and Blaster 1

    That’s what following other people’s jetting advice will get you!
  10. kevbo

    650sx rebuild and restoration.

    Yep, you just have to please your customer. A kid buying a used ski sees things much differently than an old man, usually...
  11. kevbo

    650sx rebuild and restoration.

    Im not saying you are wrong, we are just different people with different priorities. Im sure many jetskiers like what you sell.
  12. kevbo

    650sx rebuild and restoration.

    We have different interests. My time spent in a materials lab taught me that all composite structures, with rare exceptions, should be painted white. They stay cooler in the sun and are stronger that way. My time spent as a jetski owner taught me the bottom paint should be the same color as...
  13. kevbo

    Blown 701

    Destroying the top half of an engine doesn't make the easiest life for the bottom half. What else did he do to it??? No rev limiter??? Never over pay for used jetski junk!
  14. kevbo

    Blown 701

    Take $1500 off the price.
  15. kevbo

    650sx rebuild and restoration.

    It looks fine, I would have made the filler white.
  16. kevbo

    Is thier a rule of thumb?

    A larger diameter pump always work better at low hull speeds. A smaller pump needs steeper blade angles, this along with less inlet area make the pump cavitate more at low speeds. A stock 701 will work fine with a 155.
  17. kevbo

    DNA tests

    The only thing thats still sacred is a library card. They made sure the internet has no privacy protections.
  18. kevbo

    650sx rebuild and restoration.

    Yea, you are missing my point... The chances of finding a jetski owner who can and will do top quality work is almost as likely as winning a lottery. So, if one has covered a hull with paint it becomes very difficult to find damage. A stock hull with original paint is easy to inspect. A...
  19. kevbo

    ‘91 Superjet 6m6 to 62T/61x swap

    Why?? If its got a pipe then it wont matter.
  20. kevbo

    650sx rebuild and restoration.

    I know this is the pervasive attitude of all jetski owners and its the main reason I NEVER buy painted skis!
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