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  1. Re: 1997 Tigershark Monte Carlo 640 Part Out

    Bump. Still have all ------no interest??
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    Re: SBT engine help

    As a side note -You must also check to make sure the oil injection pump is set right and working as well if you have not converted to premix.
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    181

    Re: all hoses and lines

    No kits available that I know of. Things to replace would be gas lines and oil injection lines if they have never been done. I have been buying my gas line at Lowe's since they sell a real heavy...
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    Re: rebuilding a 2001 951 engine top end

    Agree totally with the last 3 posts especially on a 951. I have done a lot of top ends only but only depending on hours, what cause of top end failure is, etc.

    As much as we all hate spending...
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    Re: Sea-Doo XPS Synthetic 2 Stroke Oil

    XPS has a very distinct smell that is not easily mistaken for other oils. As CD96 above says there is some risk of using old oil and it is good to watch that it is not bad.

    I usually take it out...
  6. Re: Anyone have 951 bog bore cyls? Pistons? Anything?

    The $ per MPH is probably not worth it. Plus you make a already not so reliable 951 even less reliable IMO.
    I agree totally on the cost of a 4 stroke that is why I do not work on them(yet). I will...
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    Re: 657 vs. 657x engine comparison

    This is a great thread and is invaluable to anyone working with 657 or 657X motors and trying to put together. Myself can you fix this?
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    450

    Re: 97' XP - no power with key, cant start

    Check all your fuses(probably first thing you did). There are 3 on the front of the MPEM. 5A - MPEM , 15A- Battery, and 7.5A VTS. Also there is one in the rear electrical coil/starter solenoid...
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    Re: Winter shrink wrapping inquiry

    Buy a polyester cover on the internet for $50. Go to Harbor freight and get a silver(better quality tarp) 11X18 on sale for $21.00 and use the 20% off coupon.

    Make sure the ski has all the water...
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    Re: top speed of older sea doo

    Sounds very normal to me. GTI is a little heavier and larger(more wetted surface). The impeller pitch is also not as steep which will also limit top end speed. However the impeller is probably...
  11. Re: Winter PWC storage with Heat trace cable in Cold weather environment

    RV antifreeze is usually added to the hose (or point) that brings the water from the pump into the engine or heat exchanger on four strokes. On 2 strokes I remove this hose from the head(intake...
  12. Re: Winter PWC storage with Heat trace cable in Cold weather environment

    Staybil in the gas is another item and I like to displace all water with RV Antifreeze to help prevent any winter corrosion.
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    2,001

    Re: 96 XP WOT only 6350 RPM's

    Ditto --- smoke in hull will cause significant running problems due to lack of combustion oxygen. A malfunctioning water regulator will also stop your ski at near that rpm. Most common problem is...
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    Re: 1995 tiger shark 900

    There should be a main gas feed from the gas tank to the first carb fuel pump and a second feed to each carb from first carb(return line). The pulse fitting for the carbs should be a nipple on the...
  15. Re: 1995 XP (717) Rotary Valve or Compression?

    For a 717 155/155 is stock with good cylinder and piston/rings. 10 % variance is acceptable between cylinders. 717/657/787 Skis will run at 135 psi compression but you can start seeing some poor...
  16. Thread: Been awhile

    by hafweigthr
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    503

    Re: Been awhile

    Best way to determine is to check squish.
    I usually use the gasket provided in the WSM kits I usually buy. Not sure what thicknesses that is.
  17. Re: 98 Seadoo GTI not getting up to speed PLEASE HELP

    I have tried inline filters on several skis and if not installed correctly and the proper type they will cause issues. What I found is that I was constantly sucking air into the fuel system and it...
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    417

    Re: Testing heat sensor #278 / 000194

    Not sure how much value this temperature sensor has. It is on the cooling section so you would probably need to block water into and out of the motor and have it get to the temperature trigger point...
  19. Re: 98 Seadoo GTI not getting up to speed PLEASE HELP

    What are your max rpms? Based on what I read your ski was running ok and you decided to change the fuel lines and go through the carbs and now your ski will not run correctly--is that correct? if...
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    Re: 94 XP 657 - tuning it in

    The exhaust leak into the hull could have been the start of your problems(after rebuild) and that gunked up your new motor and exhaust. Still looks like your plugs are too wet. I would probably just...
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    Re: 94 XP 657 - tuning it in

    That sludge is not good. The reason your ski sounds like it does is the plugs are getting shorted out by the excess oil/gas/moisture that exists in your engine.
    History of the ski would be a start...
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    Re: 96XP Carb PTO rebuild Question

    Fuel diaphram side or inlet side of carb? Ditto Grumpy. On diaphram side the diaphram is the gasket.
    Some Mikuni parts explosions actually show gaskets that are not used in the Seadoo applications...
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    Re: 94 XP 657 - tuning it in

    When you say sputter do you mean like an intermittent miss like a putt-putt- putt every few seconds? Have you trimmed the spark plug wires? Plugs in good shape and using the watercraft version of the...
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    Re: 1994 XP - at a loss

    Why would you electrical system go bad after rebuild? Something that was done or messed with is not right during/after rebuild.
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    Re: 1994 XP - at a loss

    Check the ground cable connection at the motor. if the motor was painted after rebuild it could have a bad connection. Does it have the stainless star washer?
    A leak in the fuel system can affect...
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    Re: 96 gsx bad starter?

    If you are missing ground the starter solenoid would not click--you are correct. By jumpering the solenoid post (large red wire-battery to Large red wire starter) you are eliminating the solenoid. ...
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    Re: 96 gsx bad starter?

    Starter bolt will not help you with a bad ground cable. You would need to test at the battery negative. Starters can go out all of the sudden. Wires can break off brushes and worn brushes can stop...
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    Re: 96 SeaDoo SPX carb issues

    96 SP had a 587 motor with a single carb. 1996 SPX is the same as the 95 XP with 717 motor and dual carbs. You have narrowed down that carbs are your problem you just need to see if you can get that...
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    Re: Hood deflector ?

    On GTXs yes they should be the same except color. 96 and 97 are same color.
  30. Re: Seat Cover, 99 GSX Limited, How to remove cover from Foam

    You can also follow up with 100% Silicone caulk as a glaze over the top. Or go to fabric store and get the thin polyester matting as a topper under the new vinyl. I have done the silicone on holes...
  31. Re: Problem with my 95 Sea Doo SPX 657 engine

    Wow- That's steep. I keep avoiding getting in the business full time but wow. At that price you could buy a SBT motor with shipping and pay somebody to put it in. Again ski is only worth $1100 by...
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    1997 Monte Carlo 640

    Ski is going to dump --- complete with running motor. Make offers in for sale section or PM me.
  33. Re: 1997 Tigershark Monte Carlo 640 Part Out

    Ski is going to dump if nobody wants anything. Last chance for parts. Scrap sale. Price must make it worth my time though. OFFERS??
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    Re: 1996 Sea Doo GTi

    120 In both holes could affect cold starting is that a problem? I have an old Craftsman gauge I have had for 30+ years and always trust it. Gauges according to others(especially cheap ones) can be...
  35. Re: 96 XP Engine Rebuild and Carb Rebuild problems

    I always use the old carb springs unless one is visibly damaged.


    Pressure testing and priming the system after doing gas work is the best path. That way you know you didn't create a gas leak...
  36. Re: 96 XP Engine Rebuild and Carb Rebuild problems

    I always use the old carb springs unless one is visibly damaged.


    Pressure testing and priming the system after doing gas work is the best path. That way you know you didn't create a gas leak...
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    Re: 96 Seadoo SPI Strange Starting issue

    A buzzing sound is usually created by a solenoid or relay not pulling in correctly when energized. Water could get in the starter relay or it could wear and not pull in correctly.
    I would pull the...
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    Re: 99 GTI Pump Assembly

    I am still looking for parts to fix this customers ski. I bought a bronze pump housing(bad mounts) that was supposed to have a 11/22 impeller and it had a 16/23 off of a SPX or 96/97 GTX. Think it...
  39. Re: Need help 1998 seadoo gtx limited rpms surging

    Quality control and the quality of the materials are not there as opposed to Mikuni. There are also fitment issues with some of the parts. Only parts that can be of use in these kits are some of the...
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    Re: 96 XP rebuild/resto/rescue? :D

    I can send you a core jug if you pay shipping and a few bucks for packing it up and sending. PM me.
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    Re: 1990 Sea Doo

    On all Seadoo I have worked on the duplicate serial number is under the gas tank (1993-2001) at least. Not sure 100% on a 1990.
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    Re: 2004 XP di whining

    If the bearings checked good on the CB shaft then no reason to believe it is the issue. I have rebuild many motors without doing the CB shaft as long as the seals and bearings check good. On 787s if...
  43. Re: 1994 Seadoo Gtx runs on trailer fine, but doesnt run in the water

    Compression on a 657 on a calibrated compression gauge should be 150+ should run OK down to about 135 if balanced. Who did the carbs and are you sure they are correct? Do you know the history of the...
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    Re: Fuel issue, I think 95 XP

    Just curious have you checked your compression? On this setup with BN-38I you should be popping off above 40. Main jet should be 135 and pilot 67.5 with a 1.2 needle and seat. Stick with it you will...
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    Re: Low speed circuit plugged

    Small stainless steel tubular wire brushes(like used for paint sprayers,etc) also work well for this.
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