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  1. Replies
    3
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    14,050

    Re: Any history on this ski?

    Unfortunately it's just a hull. Everything has been stripped. Engine, driveshaft, pump, steering... Everything. I can only assume this was a completely built ski and someone parted it out.

    This...
  2. Replies
    3
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    963

    Re: Best 440/550 exhaust manifold

    Bill I appreciate your response and I now understand the exhaust differences in manifolds. Everything you said makes perfect sense after I have done a bit of research. The manifold is part of the...
  3. Replies
    3
    Views
    14,050

    Any history on this ski?

    I got this ski in a package deal, wondering if anyone knows anything about it. 524016
  4. Replies
    3
    Views
    963

    Best 440/550 exhaust manifold

    I have 4 exhaust manifolds and I can't decide what order they fall into or what benefits each one brings. I could really use your experiences in my decision.

    Manifolds:
    WestCoast
    Alfa
    L-S ...
  5. Replies
    5
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    751

    Re: Possible 79 js440 part out

    Possibly looking for ebox and plug wires for my '78. How much shipped?
  6. Replies
    12
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    1,126

    Re: parting out 550 ported and polished

    Also I'm interested in the impeller
  7. Replies
    12
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    1,126

    Re: parting out 550 ported and polished

    How much for ride plate and finger throttle? I know someone who is looking for them.
  8. Re: RUNNING KAWASAKI MOTORS and PARTS 550 650 750 900 1100

    Still have a 650sx motor? My brother needs one.
  9. Re: * * * Kawasaki 550 Js Pump w/ Skat 14/17 Stainless impeller * * *

    I'm very interested, PM sent
  10. Replies
    8
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    974

    Re: Mikuni SBN 44 jetting on modded 550

    So I did a compression test on the motor today. This ski has been used and abused. 155 front 140 rear. Good enough to run but with all the mods I expected around 180, but everything wears out at some...
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    974

    Re: Mikuni SBN 44 jetting on modded 550

    Thank you Jbat, I finally have some numbers to work with. I will get out again this week and try bigger jets. Also I will do a compression check tomorrow and see the condition of the motor. I guess I...
  12. Replies
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    974

    Re: Mikuni SBN 44 jetting on modded 550

    What's wrong with getting a little more power? I'll drop the octane booster from now on.

    The ski bogs down in the low and mid range like its rich, but the A/F meter says it leans out a bit through...
  13. Replies
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    974

    Mikuni SBN 44 jetting on modded 550

    Hello everyone, I'm sorry if this has been covered but I can't find quite the right info in the other threads.

    88 550
    32:1 oil 93 octane with NOS octane booster (up to 3 octane)
    OP F/A
    OP...
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