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  1. Replies
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    Re: crank seals, right?

    Finally got a rotary cover back from SBT. Put it back together and am cautiously optimistic this was my problem, or at least a problem.

    It runs much better at stock carb settings on the trailer,...
  2. Replies
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    Re: crank seals, right?

    Looks like Rotary Valve Clearance. I took it apart today and found the cover badly scored. Can feel scores on the valve too.

    Testing clearance with a feeler gauge (no o ring) I was getting at...
  3. Replies
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    5,453

    Re: crank seals, right?

    used stock springs after doing some basics to at least confirm they do not appear messed up. I know they were stock, I confirmed they were both the same length, that they offer similar compression...
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    5,453

    Re: crank seals, right?

    Good thought but no. I replaced the pulse line when I replaced the fuel lines.
  5. Replies
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    5,453

    Re: crank seals, right?

    Almost all of this I put into my first post.

    Jets are verified to be stock. In addition, I know I am the first person to go into this carb because I was breaking the paint on the screws loose. I...
  6. Replies
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    5,453

    Re: crank seals, right?

    The more I think about it, the more I like RV clearance as a culprit. One thing I have noticed is I can feel some turbulence if I hold my hand near the carb through while running, like air is getting...
  7. Replies
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    5,453

    Re: crank seals, right?

    I put in a new needle and seat as part of the carb rebuild and would have put an oring on there if the old needle/seat had one.

    If needle and seat were leaking, I'd be troubleshooting a rich...
  8. Replies
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    5,453

    Re: crank seals, right?

    Blew jets out with carb cleaner and compressed air. They show no sign of corrosion or gunk- I also eyeballed them held up to a light to confirm no sign of gunk inside.

    I heard rotary valve...
  9. Replies
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    5,453

    Re: crank seals, right?

    For a compression test? Dude, it is not compression.

    I've been troubleshooting it both in water and on trailer. The bog is bad enough that it has a flat spot even on the trailer under no load.
    ...
  10. Replies
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    5,453

    Re: crank seals, right?

    Compression is 125 in both, which is what stock boats pull up here.
  11. Replies
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    5,453

    crank seals, right?

    Picked up a 1995 GTX (657x engine) as a project ski, and it has been a project.

    Previous owner stated it wouldn't do anything other than idle in the water, would bog and die off idle, thought it...
  12. Replies
    6,935
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    667,866

    Re: Can't get enough of all craigslist jokers!

    What a weird-*** ski. He really has a deep cycle battery mounted in the boarding area?!? What does he have going on where he needed an outboard fire extinguisher? Better never fall off, cause good...
  13. Replies
    6,935
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    667,866

    Re: Can't get enough of all craigslist jokers!

    Maybe $12,000 new with trailer? Maybe?

    That looks like a really clean one, but clean Jet Mates tend to go for around half that price.

    i want a Jet Mate. I don't know what I would do with it...
  14. Replies
    14
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    2,056

    Re: Lake Powell 2 stroke pwc ban ?

    Even really obviously old boats like 1990's purple 750 sx and X-2s?

    When at lone rock I noticed some PWC's that looked late 90's early 00's vintage (def 2 stroke but possibly DI), but nothing...
  15. Replies
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    2,056

    Lake Powell 2 stroke pwc ban ?

    My sig shows I have 3 non-compliant jet skis. However, I'm leaning towards selling my couch for a 3 spot couch to ride better 2 up with my kid. We are also wanting to do a Powell visit with family...
  16. Replies
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    1,794

    Re: Did I just cook my engine?

    I'm pretty sure there was neither a bore or hone done, an engine with a fresh hone run for only a few minutes would still look pretty shiny and definitely show crosshatch.

    If the pisser is working...
  17. Replies
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    482

    Re: Oil pump failure symptoms

    Yeah, the symptom is the engine siezes in just a handful of minutes after the pump fails, and you hope it is only the top end that fragged.
  18. Re: 1989 Kawasaki 650sx -- I have many questions about the state of my engine...

    Are you getting consistent compression in both holes? Compression gauges are far from reliable as to the exact pressure, what is important is that cylinders read uniform. But even how much to care...
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    1973 js400 #96 fs

    Thought this was interesting. Hull looks ok, but obviously needs a lot of TLC.

    539357

    https://westslope.craigslist.org/boa/d/3-kawasaki-jet-skis-and/6598668757.html
  20. Replies
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    3,054

    Re: Kawasaki 650SX vs newer stand-up skis

    I haven't ridden a 650SX, but my 1992 750SX isn't known to handle super great. Newer hulls obviously make a difference, but handling parts make a huge difference too, IMO, first and foremost a scoop...
  21. Re: X2 with westcoast pipe overheats when I beat on it.

    It was a blown headgasket. There were carbon tracks from both cylinders leading to cooling passages. Replaced the gasket and I get a steady stream of exhaust and the boat runs cool. The boat has had...
  22. Thread: 650sx cooling

    by newsance
    Replies
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    1,050

    Re: 650sx cooling

    Wait a minute. On my X2, the connection on the pump with right-angle fitting loops around and connects to the upper fitting.

    I could swear it was this way on the two 1986's that I used to own. It...
  23. Re: X2 with westcoast pipe overheats when I beat on it.

    Water is COLD.

    I live in Colorado in the foothills of the San Juans at 8400 feet. Both lakes I frequent most often are above 8000, lowest is 6000 something, highest damned near 10,000 feet. All...
  24. Replies
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    Re: Exhaust manifold gasket

    There are several diagrams floating around this site that show cooling hose routing.

    The gasket block-off gives priority to the hottest parts of the motor first. Allowing flow from the exhaust...
  25. Thread: 650sx cooling

    by newsance
    Replies
    4
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    1,050

    Re: 650sx cooling

    You are posting in the X2 forum. On an X2, the hose running the to the foreground fitting is the stock bilge line that works off of suction generated by the jet pump.

    The background angle fitting...
  26. Re: X2 with westcoast pipe overheats when I beat on it.

    I ordered another gasket.
  27. Re: X2 with westcoast pipe overheats when I beat on it.

    No increased timing. I am familiar with how to tune and what a plug chop is. I purposefully run my bots rich for piece of mind. This one I set to run slightly leaner because the original rich tune...
  28. Re: X2 with westcoast pipe overheats when I beat on it.

    Not lean. Recently rebuilt carb and new plugs with a very nice chocolate patina on them.

    Head gasket leak adding gas to cooling and thus displacing water? Any way to diagnose if it doesn't show...
  29. X2 with westcoast pipe overheats when I beat on it.

    I have a 1991 X2 with a Westcoast pipe. The stock head was milled down, at least I am 95% sure it was because cylinder PSI is about 25 PSI higher than the reading I get on stock boats (including the...
  30. Replies
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    Re: Sorting out a few problems on a 1991 X2

    Thanks. Is there any harm to just letting the pisser situation sit as is? I get water out at idle so I still have confirmation water is circulating.

    I'm leaning towards carb rebuild as well, but...
  31. Replies
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    Sorting out a few problems on a 1991 X2

    I've got a 91 X2. It has a Westcoast pipe, a milled head, and a single 38 or 40mm mikuni.

    It has always needed a little more of a push on the primer to start than my other boats, and has slightly...
  32. Replies
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    Re: How did I get water in my gas?

    Yes. But I may be removing that rather soon.
  33. Replies
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    Re: How did I get water in my gas?

    I was opening it and draining it, over and over and over. The first time when I noticed a performance issue I noticed the separator was about 2/3rds full.

    I just saw this post from you-...
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    Re: Selling advice needed

    Non running that sounds like a $100 ski.

    Running, if it really is clean, I'd ask maybe 800-900 and take anything over $600. I guess whether or not to wake it back up depends on what kind of effort...
  35. Replies
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    How did I get water in my gas?

    I have an X-2 that somehow has a crap tank of gas- On this tank it started missing, bogging, stalling from time to time, and the water separator cup is getting water in it to the tune of being half...
  36. Replies
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    Re: My $50 1992 Kawasaki 750sx

    Hah. They handle above 40mph? ;)

    I found shimming the back of the ride plate helped noticeably with the nose-high part. Get some longer stainless bolts and washers and add about 3/8" of a washer...
  37. Replies
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    547

    750SX Starter Cable- specialty part?

    Hopefully quick question. Positive cable going from E-box to starter is on its last legs. I suspect internal corrosion/break of the cable. Diagnosed as starter turns over very slowly, but jiggling...
  38. Re: Dumb question but is it Bad to go full throttle for too long?

    Yes and yes.

    Full throttle on a 2 stroke for long periods is begging for a seizure. On a 4 stroke, the rotating parts have both an oil pump and an oil reservoir keeping everything lubricated and...
  39. Replies
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    Re: Please let me hear your thoughts...

    A lot of this sounds like beginner jet ski mistakes to me. Trailer lights out? On a trailer without sealed bulbs, expect to replace them often, especially if you put the trailer in water with the...
  40. Replies
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    Re: Quick advice sx750

    What makes you think the oil injection is bad? When they fail, it is catastrophic, but the flipside is that they are reliable systems and don't fail often. Its a lot more common for failure to...
  41. Replies
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    Re: Will too much oil in premix hurt the engine?

    If its an engine run right at the ragged edge, this can create lean siezes. The additional pre-mix displaces fuel, when creates a leaner, hotter burn, which can lead to a seize. But the reality is...
  42. Replies
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    Re: Double trailer towing with a CAR ??

    This is a pretty easy thing to figure out.

    The key factors are what class hitch you have, and whether or not the total and tongue weight of the trailer exceed the limits of the hitch or the car....
  43. Re: About to buy 2003 Seadoo GTX 4 cycle185hp. Good reliable ski? Opinions wanted!

    The early supercharged 4 stroke Seadoos do NOT have a good reputation for reliability. I don't know enough to comment about the newer ones, but that vintage was notorious for supercharger related...
  44. Thread: Destin, FL

    by newsance
    Replies
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    3,018

    Re: Destin, FL

    I've put in at Philips Inlet at Rosemary Beach.

    3016'08.70" N 8558'30.45" W

    There is a public ramp into Powell Lake, and you can take the inlet out into the ocean, WHEN IT IS OPEN- it is...
  45. Replies
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    Re: New rider, checking in

    If budget is the game, your budget will go a lot further with a 750sx/sxi than an SXR or SJ. They are a lot of fun, but are neither as stable as the SXR or as freestyle happy as the SJ.
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