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  1. Big Kahuna

    Bun vs xs engines

    What Rosie said.
  2. Big Kahuna

    1986 550 hull seperation bond rail splitting

    Gonna ask stupid queation. Did you flip hull over?
  3. Big Kahuna

    What mods have you done?

    I use a Wahoo Rival watch which use as a backup to my Wahoo Bolt cycle computer. Then it syncs to Strava. You can get all this info just by using the Stava App.
  4. Big Kahuna

    4–stroke SJ ECU and electronics mount plate alternatives

    The GoPro's can give good telemetry stats if not mistaken, ran across some on the FB 4S pages..............
  5. Big Kahuna

    Want to Buy Riva 760 35cc domes

    @Mike W
  6. Big Kahuna

    Boring a Head Pipe and Exhaust Manifold ?

    Only 60mph SJ I have ridden was one of a Tricky's. This had an old DASA with a Type 9 dry pipe....
  7. Big Kahuna

    Fuel Range for the 4 Stroke SJ

    Just has the Worx Exhaust hose. Would not think this would effect anything. I had several long pulls of throttle getting some top speed runs then late in ride started slamming turns, this would have eaten some extra fuel.
  8. Big Kahuna

    What mods have you done?

    54.5 mph with the JD intake grate. The Watcon steering made all the difference in cockpit setup. The Grate along made.the ski handle so much better. Next ride will be with the Watcon Grate.
  9. Big Kahuna

    Fuel Range for the 4 Stroke SJ

    The fuel light started flashing and rode 5 more minutes. So, about 1:15 mintues on a tank.
  10. Big Kahuna

    What mods have you done?

    Saw a pic on StupidBook with a turbo stuck in the back right corner.............
  11. Big Kahuna

    Which head is this?

    Cool Head, Wamiltons, Greater Yamaha and a few others were all built by same company........
  12. Big Kahuna

    What mods have you done?

    I have the JD on right now, will find out how it does today. First ride with it and upgraded steering.
  13. Big Kahuna

    Freestyle PVC Beach Cart

    Not gone back and read the thread, but I do not think those are regular "PVC"........ Thinking some form of extruded plastic.
  14. Big Kahuna

    What mods have you done?

    Oops, I meant Wax grate.
  15. Big Kahuna

    Fuel Range for the 4 Stroke SJ

    Taking my 4S to late tomorrow to see how fat I can get with it. Will be tracking ride with my watch. (Gps)
  16. Big Kahuna

    Super Jet B7hs solid top plugs

    ROGO is an aftermarket head. So it would have called for the ES.
  17. Big Kahuna

    Super Jet B7hs solid top plugs

    AM Head?
  18. Big Kahuna

    What mods have you done?

    I thought the Wax was supposed to be one of the faster grates..........
  19. Big Kahuna

    How Many?

    Trying to get this section going. FB sucks!!!!!!!!!!!!! Hard as hell to find anything.
  20. Big Kahuna

    High power boat chaser. Engine options?

    Honestly, For Chasing boats, the motor you have is probably best. When you go with the larger displacement motors, the power is much more like a light switch, It is not linear. You would need to have the motor built for your use. I found a DASA Non PV billet 6mm stroker motor 8...
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