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  1. #1

    Exhaust in engine compartment 1100 Venture

    I rode the 1100 for the first time yesterday for the first time this season. I noticed lots of exhaust smoke coming from the engine compartment. Anywhere I should check first? I ask because this is a 3 seat model and everything is extremely tight and difficult to view and work on.


  2. #2
    eb87's Avatar
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    It could have a blown rear cylinder seal (crankshaft seal) and the exhaust smoke is actually compression from the crankcase. If that is the case the rear cylinder would be lean at all times and you know what means to a 2stroke.

  3. #3
    OK, so how do I determine if it is, in fact, the rear seal?

  4. #4
    crashhard's Avatar
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    macio where do you live? Just wondering if something cracked due to freezing.

  5. #5
    It never freezes here. South Texas.
    But, you were right I felt down there and the seal is completely out and spinning on the shaft.
    This sucks!
    I have no idea how to proceed with the repair although I am a decent mechanic.
    Are there any detailed links you can direct me to?

  6. #6

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    buy the manual and follow it. if not go tp shopsbt.com and download instruction on taking it apart.

  7. #7
    eb87's Avatar
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    Forgot to check on this post, in case it's not fixed yet...... the way I found mine was to crank it on the hose ran it for about a min and cut it off. I could clearly see a light trace of smoke coming from the rear of the engine where the shaft is. I recommend using a good flash light. A backfire of water ingestion can cause the rear seals to blow out. In my case I have an SBT motor and they only put 1 seal in which blew complete out and was wedged against the coupler and I didn't realize at first.

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