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  1. #1

    1998 1100 hard start

    I have a 1998 stx 1100 that won't start unless I pour mix in the carbs. Even then it only idles by itself for a little bit and then only if I throttle up. Eventually it dies. I ran it on the hose and realized the front cylinder was running way hot. I've cleaned the carbs. I had this problem posted in another section and it was suggested that I have an air leak. I replaced the base gaskets in the carb but can't get to the bottom of this. Thanks for the help.


  2. #2
    Have you ran a compression test?

  3. #3

    1998 1100 hard start

    Yes. Front to back 135,125,125

  4. #4
    steve45's Avatar
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    How did you clean the carbs? What do the spark plugs look like?

    These things aren't designed for prolonged idling.

  5. #5

    1998 1100 hard start

    I completely disassembled the carbs and cleaned with carb cleaner. All of the jets were cleaned out and seemed clear. Pulled screens out and cleaned. didn't replace diaphragms but checked for any holes or damage and didn't find any. Slides on carbs move freely and together when revved. New plugs and when you pull them they have the gas/oil residue on them. I am running premix and the oil injection together since I replaced a piston. Would that keep it from starting in itself? Thanks for the help.

  6. #6
    steve45's Avatar
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    OK, just wanted to make sure you disassembled the carbs. Some people just spray cleaner on the outside and think they've cleaned it.

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