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  1. #21
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Unfortunately if the sensor is bad you have to replace it. It is not hard to fix, its mounted under the front seat mount and held on by 2 screws.

    Sean


  2. #22
    I replaced pistons and rings on my 2007 stx 12f. When I start up after reassembly the engine races instead of idling. I've checked the throttle, cable and idle sensor controller and motor. What else should I check? Thanks

  3. #23
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    You have something off, there is an air leak somewhere.

    Sean

  4. #24

    Burnt Exhaust coupler .

    Quote Originally Posted by smokeysevin View Post
    You will burn up the coupler again.

    Wait on the rings.

    Sean
    Hey Guys , this is a great forum. lots of great info .

    I have had a similar problem to "smokeysevin" got out on the ski on Sunday, only to find it wouldn't plain or rev out.
    Starts no problem, and sounds fine at idle, yet , will not pull out of the hole.

    On inspection, I have a hole in the blue rubber exhaust coupler.

    Would this alone be enough to stop the engine from revving ,

    Also, how do I get the coupler off and on, as it was damaged I cut it off.
    But the new one will be a bit of an issue to get on.
    I've tried to take the muffler out to make it easier , however it also an issue to remove as its hitting the exhaust outlet pipe when I try and slide it back.

    Any help would be greatly appreciated.

    Kind regards Marty.

  5. #25
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Quote Originally Posted by Martaroony View Post
    Quote Originally Posted by smokeysevin View Post
    You will burn up the coupler again.

    Wait on the rings.

    Sean

    Hey Guys , this is a great forum. lots of great info .

    I have had a similar problem to "smokeysevin" got out on the ski on Sunday, only to find it wouldn't plain or rev out.
    Starts no problem, and sounds fine at idle, yet , will not pull out of the hole.

    On inspection, I have a hole in the blue rubber exhaust coupler.

    Would this alone be enough to stop the engine from revving ,

    Also, how do I get the coupler off and on, as it was damaged I cut it off.
    But the new one will be a bit of an issue to get on.
    I've tried to take the muffler out to make it easier , however it also an issue to remove as its hitting the exhaust outlet pipe when I try and slide it back.

    Any help would be greatly appreciated.

    Kind regards Marty.
    You have to remove the waterbox from the exhaust manifold before you can do anything else. You can install the coupler once you have the waterbox disconnected.

    Sean

  6. #26

    Bad collector pipe..

    Thanks Sean, so far I've removed Manifold, collector Pipe, 1st Water box.

    From what I can see the collector pipe has been badly corroded, and allowing exhaust to double back past where the 2 rings should have been , (now corroded away) and eventually burning through the rubber coupler.

    So I've been online shopping, finally located "Partzilla" in the U.S. and ordered the offending parts , (I might add a fraction of the price I would pay here in Aus.

    Can anyone confirm , whether the escaping exhaust gases into the engine compartment , alone would have been enough to prevent the engine from revving , as it wouldn't even Plane at all.
    I'm hoping this is the sole reason , and that I don't have another emerging problem.

    Thanks again Sean for your reply. Marty.
    Last edited by Martaroony; 12-10-2013 at 08:10 AM. Reason: spelling

  7. #27
    what is the torque values for the inlet manifold. i have to remove the manifold to install a new starter

  8. #28
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    You dont need to remove the manifold. I have done it a few times on my 15f. The 12f is tighter though.

    Sean

  9. #29
    Quote Originally Posted by smokeysevin View Post
    You dont need to remove the manifold. I have done it a few times on my 15f. The 12f is tighter though.

    Sean
    thanks sean. did you access it from the rear after removing the air box? too bad i have big arms but i will try it.

  10. #30
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Yes thats the trick.

    Sean

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