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    Super Jet Gas dripping from mikuna SBN. Do I need a rebuild kit?

    Hi So I got the rebuild kit and some related stuff from @JetManiac - excellent service and knowledgeable support. Thanks Chris! I am in the process of the rebuild - now fully disassembled, cleaned up in ultrasonic and blown out, and I am just about to start reassembly. I hope someone can help...
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    Super Jet Gas dripping from mikuna SBN. Do I need a rebuild kit?

    So I pulled the carburetor and have opened the regulator side. The diaphragm was intact but quite stiff and hard (that’s what she said) and kind of crinkly and rigid in parts unevenly so across the surface. There is no way this can have been functioning properly as regards a smooth and...
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    Super Jet Gas dripping from mikuna SBN. Do I need a rebuild kit?

    JC-SuperJet - How would I do a pop-off test that would reveal issues in the needle and seat?
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    Super Jet Gas dripping from mikuna SBN. Do I need a rebuild kit?

    Thanks for the reply, mikidymac!
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    Super Jet Gas dripping from mikuna SBN. Do I need a rebuild kit?

    Yes, thank you E350 for your reply and the links. A torn diaphragm is what I was wondering on too after looking at a video about rebuilding with the carb kit, and seeing the diaphragm is seated right there. I live in Canada so the jetski is covered on a trailer outside through every winter...
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    Super Jet Gas dripping from mikuna SBN. Do I need a rebuild kit?

    Hello, I have a 96 superjet with a mikuna SBN carburetor. It has been running awful. I changed the plugs and fresh gas and made sure the gas is flowing ok. I cannot seem to get a low idle setting that is ok, and which then will be ok giving throttle and getting off throttle. If i try to...
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    Super Jet what is likely source of leak?

    Hi - My question regards what are likely ways water is getting into the back chamber under the deck. Some info as context for my question: Please see the attached picture of the back of my superjet (sj700 roundnose circa 1994-1996). I got it a few years back. I believe all the foam was...
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    Super Jet '96 SJ700 Porpoising

    Thank you for telling me about this Did you get the extended plate with the concave part? Which model intake did you use? Sent from my SM-T813 using Tapatalk
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    Super Jet '96 SJ700 Porpoising

    I tried to pm you but didnt seem to be allowed to start convo. Maybe pm me and i can reply with pics of what i have? Sent from my SM-T813 using Tapatalk
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    Super Jet '96 SJ700 Porpoising

    rushford_ripper - no, i do not mean cavitation. In fact pump and impeller etc. seem to be working great. I mean a porpoising action whereby the ski, particularly the front part first moves lower in the water then moves or pops back up. The down / up motions occur with quite rapid frequency...
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    Super Jet '96 SJ700 Porpoising

    The following text belongs with the pics above: I have a 1996 SJ700. This was my first stand up jet ski and I have had it for a few years - i traded a motorcycle for it. It had been modified for freestyle. I can get up and ride it around but i find that i can never go very fast as it seems...
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    Super Jet '96 SJ700 Porpoising

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