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  1. #1

    Burning holes thru exhaust hose between exhaust pipe and silencer on a 1995 SL650.

    I had someone unfamiliar with the ski riding it and he brought it in with smoke coming from under the seat. Found that a hole had burned through the rubber coupling between the exhaust pipe and silencer. I figured it was the result of raw fuel in the exhaust so I checked the plugs and found the MAG plug wet and figured it was the cause. Replaced all the plugs and put in a new rubber coupler. Took the ski out and other than a little idle roughness it seemed to run normal. After only about 15 minutes of running, I brought it in and checked the coupler. The new coupler had a new burn hole in it in the same location, but not yet as large as the one I replaced. This ski has always been trouble free. Any suggestions of where I should start looking for the cause? Thanks.


  2. #2
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    On the top of the exhaust pipe, there is a fitting with a hose attached. Remove the hose, unscrew the fitting from the pipe and clean out the screen and make sure the orifice hole in the fitting is clear. You are burning the coupler because you are not getting cooling water into the exhaust.

  3. #3
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Xactly ^^^^^^^^^^

  4. #4
    BlueFishCrisis's Avatar
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    And Welcome to the Hulk!!

  5. #5
    Thanks, I'm on it.

  6. #6
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    I use the silicone hoses for the coupler between the pipe and waterbox. Its pricey, but gives some more resistance to high heat and burning through if there ever is an issue.

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