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  1. Re: Help Identifying Aftermarket Exhaust Parts installed on JS550

    the 650 box is also made of stainless steel instead of fiberglass
  2. Re: Help Identifying Aftermarket Exhaust Parts installed on JS550

    coffman waterbox isnt too loud, pjs, mariner boxes arent too loud either. i would go with a stock box as they are fiberglass and will fall apart over time. aftermarket waterboxes are all aluminum
  3. Replies
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    704

    Re: 750 cdi with timing advance

    25 degrees at 7k rpm is detonation city. especially on pump gas. exactly why the 6 degree advance plate is no good on a small pin without some kind of ignition retard module.
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    548

    Re: X2 Parts

    well thats too bad this is a scam, my x2 needs a seat! haha
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    704

    Re: 750 cdi with timing advance

    thats something you might want to talk to groupk about. ive never used them for any engine work in the past. you will most likely be fine with the advance plate just no sustained WOT runs. youll have...
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    704

    Re: 750 cdi with timing advance

    just get a zeeltronics cdi for the 750. its a direct plug n play swap. plus you get the advantage of setting up your own custom curve for it using your laptop. the yamaha guys have been using the...
  7. Re: Can I rebuild a JS pump with SX parts?

    yes thats exactly what is being discussed here. not sure what seals youll need but with the impeller shaft OD and the housing ID you should be able to match it up. for the bearings it looks like...
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    279

    Re: Choosing a pump TUNNEL stuffer

    prowatercraft makes a tunnel stuffer similar to what youre asking. it will help with choppy water hookup and top speed but its not going to help with bottom end. the stubby cone may help depending on...
  9. Re: Can I rebuild a JS pump with SX parts?

    you could my housing and make it work with a sx driveline
  10. Re: Can I rebuild a JS pump with SX parts?

    i have a good js housing that is blueprinted and is drilled for dual cooling ill never use again if youre interested.
  11. Re: Can I rebuild a JS pump with SX parts?

    it is different but can totally be done. youve already got the shaft so youll just need to get the correct bearings and seals to make it work. i was going to do this on my js 550 to switch to the sx...
  12. Replies
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    Re: WTB 550 parts

    ive tried a wetwolf pump cone on a 550 pump. i ended up taking it back off because i had better performance with the stock cone. the 550 pumps are a little different, they like a lot of pressure to...
  13. Replies
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    437

    Re: 750sx Porting

    ive had good luck with ole newmiller. he did a 750 sp for me year before last. i did my own case porting which if i could go back i wouldve sent him the cases too.
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    1,466

    Re: Twin Keihin CDKII tuning help!

    what are you using for a flame arrestor? i had a 750 in my 550 that had the dual 3 jet keihins. i ran the stock flame arrestor, removed the rubber trumpets and took 2 of the 3 screens out. i also...
  15. Replies
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    771

    Re: Conversion Ski

    that pipe looks familiar!
  16. Replies
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    771

    Re: Conversion Ski

    yes thats a nice plate however it doesnt work on a js style driveline. only works with a sx style driveline and also will not work with the rhaas conversion plate setting that works with the stock...
  17. Replies
    12
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    771

    Re: Conversion Ski

    http://www.pwctoday.com/showthread.php?t=476134 here is my build thread on the conversion. theres a few pics and a brief explanation of what i did to make it work.
  18. Replies
    12
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    771

    Re: Conversion Ski

    yes, my 550 was a JS. i bought a complete, non running 94 ssxi and used it as my donor ski. i ended up using the stock stainless mount and modifying it to bolt up to the stock ebox location. i did...
  19. Replies
    12
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    771

    Re: Conversion Ski

    1- yes the 650 exhaust will bolt up including the manifold. to get the power benefit of the additional 100cc's, youll want a better aftermarket exhaust pipe.
    2- 750 all day. no replacement for...
  20. Re: 550sx reed case and too big 77mm pistons?

    reed cylinders can go to 77mm bore. youll just need to clearance the cases as mentioned above. the piston port cases theres not enough metal there to go 77mm and the case studs are too close to the...
  21. Replies
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    1,111

    Re: Skat track 5 vs 6.5

    what you really should do is strap the ski down on a trailer and run it in the water so you can fine tune it that way. eliminates the risk of a seizure. take a look at this thread about tuning carbs....
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    1,111

    Re: Skat track 5 vs 6.5

    you cant expect to be able to really tune your ski in the ocean especially with a tach. you need glassy water for that.
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    1,197

    Re: WTB BLUE Yamaha 701 62t Exhaust Pipe

    never heard of a blue 62t stock exhaust. theyre all gray. the only blue stock exhaust is a stock 61x exhaust on a 96+ superjet.
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    1,804

    Re: Cylinder Boring

    what do you mean by blind cylinder?
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    1,111

    Re: Skat track 5 vs 6.5

    i would never attempt to bend an impeller without a pitch gauge. youll end up with 3 different pitch angles on between the blades
  26. Replies
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    1,197

    Re: WTB BLUE Yamaha 701 62t Exhaust Pipe

    ive got 2 complete 62t stock exhaust pipes off of a raider.
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    1,111

    Re: Skat track 5 vs 6.5

    ohh ok yes the 16.5 would good with a 750 engine and a pipe
  28. Replies
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    1,111

    Re: Skat track 5 vs 6.5

    the 650 and 750 impellers will not interchange. yes it will screw on to both pumps but the spacing inside the impeller will hit the inner hub when tightening the impeller which will lock it up. it...
  29. Replies
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    1,063

    Re: X2 throttle response

    what jetting on the 44 are you running? what size needle and seat and what spring are you running? does it idle out of the water? it almost sounds like either youre holding the throttle open without...
  30. Replies
    4
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    602

    Re: 750sx cdi/stator question

    i paid 325 shipped for the latest pdcis-a02t model. there are several people selling them. jetmaniac on x-h2o.com is one. you can also order directly from www.zeeltronic.com
  31. Replies
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    602

    Re: 750sx cdi/stator question

    all of the 750 ss,xi,pro etc cdis should be interchangable. the one exception im not sure of the zxi electronics. however, if you really want to upgrade your ignition, get a zeeltronics cdi. fully...
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    514

    Re: 1993 Kawasaki 750 cracked head

    im sure it could possibly be repaired but its just a stock head and is pretty easy to find a cheap replacement. the biggest concern with a cylinder head cracking is the possibility of water leaking...
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    Re: A few 550/550sx bits and bobs

    ive got a 750sx turn plate, same as the 550 plate just shorter which helps get your weight more forward with newish bushings. also have some black riva 0 degree bars i could include.
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    Re: Freestyle Hull

    yes the engine, pipe, pump, combo greatly affects the cost. most if not all of the flatwater setups have 900+ cc engines that are custom billet cylinders. you could have almost 10k just in the engine...
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    Re: Freestyle Hull

    it all comes down to skill. some can flip no problem with a 701 others cant. tray time will help more than anything. i have a rockered rn superjet that is also -4 that i bought from a riding friend....
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    Re: WTB Aftermarket JS550 Parts

    definitely go small pin 750 and dont look back. wouldnt even mess with a 650 engine as its only 11 or 12 more hp than a 550 engine stock. the 750 swap is super easy to do. almost any pipe will fit...
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    Re: Like new Kawasaki 750 motor

    ive got a set of sxr cases and a #22 small pin 750 cylinder that needs bored id make someone a deal on if they wanted to build an engine from scratch. the #22 cylinder has the exact same port timing...
  38. Replies
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    Re: Carter B or rocker nose clip

    ive got a 90 550sx hull that i started working on a few years ago and have since moved on. the tray was wet so defoamed the tray and glassed in a 650 pump tunnel but made it work with the stock 550sx...
  39. Re: impeller rebuild goof opinions needed

    which pump?
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    841

    Re: Reed engine for Kawasaki

    1000 is cheap for a 550 engine? sheesh
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    1,408

    Re: Kawasaki Reed engine

    980 is a charlotte nc based area code.
  42. Replies
    771
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    104,640

    Re: carbonfiber x2 build

    id take a glass hull for sure
  43. Replies
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    1,466

    Re: 550 FUN build. Options hmm

    that would be a #20 or unmarked cylinder. the best for bottom end. i ran a 20/22 skat and 69mm bored outlet nozzle with the 550 pump.
  44. Replies
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    Re: 550 FUN build. Options hmm

    its true the 701 has a little lower port timing than the 750 depending on what 750 cylinder you have. kawasaki made 4 or 5 different 750 cylinders. the early #20 and #22 casting 750 cylinders will...
  45. Re: at what point is a stand up pwc no fun- choppy waves?

    only not fun when its broken
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