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  1. #1
    PWCToday Regular Ski collector's Avatar
    Join Date
    Jun 2013
    Location
    Haymarket VA
    Age
    45
    Posts
    90

    Rotary Valve gear worn on New engine from SBT

    Got My 720 engine from SBT a few weeks ago.....Put it in the ski......took it out ran great for a few hours then died. Come to find out the rotary Valve will not stay in time....the shaft keeps skipping teeth on the crank (didnt pull it apart because of Warranty)....Corrected it 3 times.......Compression is still perfect at 148/149. Is this a Common thing with Seadoo 2 strokes Or do I just have a Fluke Bad luck situation.
    1996 Tiger Shark Monte Carlo 900 -Sold
    1996 Polaris SL780 - sold
    1991 Yamaha Waverunner III - sold
    1989 Yamaha Waverunner 500 -sold
    1989 Seadoo Sp - Is it worth fixing???
    2008 Seadoo RXT-X
    1997 Seadoo Gti
    2004 Seadoo GTX 185 SC

  2. #2
    PWCToday Regular Ski collector's Avatar
    Join Date
    Jun 2013
    Location
    Haymarket VA
    Age
    45
    Posts
    90

    Re: Rotary Valve gear worn on New engine from SBT

    My intention is not to rag on SBT but mainly to find out if this is a common problem with seadoo 2 strokes........I buy skis all the time but may avoid older seadoos if this happens alot. out of 13 skis I've owned this is only 1 of 2 seadoo 2 strokes I've ever bought.
    1996 Tiger Shark Monte Carlo 900 -Sold
    1996 Polaris SL780 - sold
    1991 Yamaha Waverunner III - sold
    1989 Yamaha Waverunner 500 -sold
    1989 Seadoo Sp - Is it worth fixing???
    2008 Seadoo RXT-X
    1997 Seadoo Gti
    2004 Seadoo GTX 185 SC

  3. #3
    Administrator Jeremy SBT's Avatar
    Join Date
    Feb 2009
    Location
    Florida
    Posts
    208

    Re: Rotary Valve gear worn on New engine from SBT

    Please contact SBT warranty department.

    877-330-0231. Ask to speak to Nick, he is our warranty manager.

    Thanks.

  4. #4
    PWCToday Regular Ski collector's Avatar
    Join Date
    Jun 2013
    Location
    Haymarket VA
    Age
    45
    Posts
    90

    Re: Rotary Valve gear worn on New engine from SBT

    Update.....Got give SBT props....They said it would take 2 weeks turn around for the replacement engine....8 business days and its on its way. Thanks guys...goin on a trip in 2 weeks and this gives me plenty of time to get the new one put in before that. AWESOME work
    1996 Tiger Shark Monte Carlo 900 -Sold
    1996 Polaris SL780 - sold
    1991 Yamaha Waverunner III - sold
    1989 Yamaha Waverunner 500 -sold
    1989 Seadoo Sp - Is it worth fixing???
    2008 Seadoo RXT-X
    1997 Seadoo Gti
    2004 Seadoo GTX 185 SC

  5. #5
    Frequent Poster
    Join Date
    Jul 2008
    Location
    the bay
    Age
    22
    Posts
    188

    Re: Rotary Valve gear worn on New engine from SBT

    Quote Originally Posted by mananaja View Post
    I just have a Fluke Bad luck situation.
    จีคลับ
    99% of the time it is
    js 550 with rebuilt engine from a 94 for the haters

  6. #6
    PWCToday Newbie
    Join Date
    Sep 2016
    Location
    thailand
    Age
    27
    Posts
    1

    Re: Rotary Valve gear worn on New engine from SBT

    thank you




    Gclub

  7. #7
    PWCToday Regular
    Join Date
    May 2009
    Location
    the 'ville, kentucky
    Age
    73
    Posts
    104

    Re: Rotary Valve gear worn on New engine from SBT

    rotary valves were my problem also with my 97 GTS

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