GTX w/ Major Engine Problems
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  1. #1
    PWCToday Newbie
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    Apr 2019
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    MO
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    GTX w/ Major Engine Problems

    I have a 2004 GTX 185 that had a 2012 SBT engine that failed (Connecting rod broke trashing the block). Now I am not sure what to do. I have taken apart the entire engine and the crankshaft looks to be okay and the two other pistons and connecting rods look okay. If I could find a short block I could probably piece everything back together. Here are a few questions I have.

    1) Can I buy any connecting rod, and just replace the pistons. I see many different pistons on the internet. Some are $225 for a set of 3 and some are $225 a piece. What is the difference. They all say forged pistons that fit my engine.

    2) Also bent the valves in the cylinder that the connecting rod broke. What valves should I get. I see a lot of people recommending the Supertech valves however there are also those Caltric valves for $113 a set. Whats the difference?

    3) Finally what is the difference on the $50 starters and the $200 starters (need this because the rod hit the side of the starter).

    I am trying to figure out if this Seadoo is ever worth fixing because of the cost of what everything will cost. Any help or recommendations/upgrades to do while I have it apart are appreciated.

  2. #2
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: GTX w/ Major Engine Problems

    1...most, if not all, the seadoo 4 strokes use the same rod. Piston needs to be for 185hp model. Just buy good used.

    2...I've used Kibblewhite valves with no issues.

    3..again, buy good used oem.
    http://www.facebook.com/twinlakesjetskirepair

    '89 Kawi 650SX 42.4 GPS
    +3" stock pipe, ported ex. manifold, drilled waterbox, blueprinted pump, Ocean Pro ride plate

    '99 Yama GP1200 65U 61.8 GPS
    ported cylinders, matched cases, milled head, blueprinted pump, long ride plate

    '96 Seadoo HX 717 53.13 GPS
    light porting, massaged cases, lightened flywheel, port matched manifolds, Rossier pipe, stubby pump cone

  3. #3
    PWCToday Newbie
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    Re: GTX w/ Major Engine Problems

    Where did you buy your valves at. I only see them selling them individually on their website.

  4. #4
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: GTX w/ Major Engine Problems

    this last set I bought from AZ Quad Parts in Arizona.
    http://www.facebook.com/twinlakesjetskirepair

    '89 Kawi 650SX 42.4 GPS
    +3" stock pipe, ported ex. manifold, drilled waterbox, blueprinted pump, Ocean Pro ride plate

    '99 Yama GP1200 65U 61.8 GPS
    ported cylinders, matched cases, milled head, blueprinted pump, long ride plate

    '96 Seadoo HX 717 53.13 GPS
    light porting, massaged cases, lightened flywheel, port matched manifolds, Rossier pipe, stubby pump cone

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