Reed Valves
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Thread: Reed Valves

  1. #1
    PWCToday Newbie
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    Reed Valves

    So I think I may have reed valve issues but Iím not entirely sure. It seems as if my STX1100 isnít quite hitting the powerband or hitting its peak RPMs. It hesitates slightly on acceleration at wot, and takes longer than I think it should to get up to speed. The other weekend I could clearly tell she was hitting the powerband and she would scream, and I mean scream with tons of top end power! That was the only weekend she did scream and really fly...... now she almost hesitated on the top end and in a sense, hits the powerband slightly for a quick second, but doesnít actually reach those rpms and stay in that range. Itís almost like itís trying to hit the powerband but it just wonít... Iíve owned this machine for 4 weeks.

    Fuel and oil lines are all clean

    would reg unleaded gas vs super make any difference? Maybe even seafoam?

    What else would i check besides fuel and oil?

  2. #2
    PWCToday.com Is My Home Away From Home Grumpy Old Guy's Avatar
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    Re: Reed Valves

    When was the last time the carbs were cleaned/rebuilt ??

    If reeds were bad it wouldnt start.

  3. #3
    PWCToday Newbie
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    Re: Reed Valves

    Quote Originally Posted by Grumpy Old Guy View Post
    When was the last time the carbs were cleaned/rebuilt ??

    If reeds were bad it wouldnt start.
    Not sure, the top end was rebuilt a few years ago but thereís nothing about carb work on the invoice so I would assume itís been a while or never done

    i guess Iíll start by cleaning the carbs and seeing if that makes a difference
    Last edited by Pj96; 07-05-2019 at 06:14 AM.

  4. #4
    PWCToday.com Is My Home Away From Home john zigler's Avatar
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    Re: Reed Valves

    If reeds are bad, you will see fuel spray, backwards up into the carb throat while the ski is running, and reved up.
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