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    jsnmsu's Avatar
    jsnmsu Posts: 2, Reputation: 1
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    #1

    Apr 20, 2008, 06:15 AM
    Briggs 15.5 hp won't start
    I have a Model 284h77 Briggs and Stratton motor that won't start. I just had to replace the Magneto, because it had NO spark at all. The new magneto is producing a great spark, but the engine will not start. It seems to try to start the first few turns of the flywheel, but then seemly floods out. I pull the spark plug out and it has gas on it. I have replaced the gas with fresh gas, but still no luck. Any help would be appreciated. Thanks
    MOWERMAN2468's Avatar
    MOWERMAN2468 Posts: 3,214, Reputation: 243
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    #2

    Apr 20, 2008, 03:02 PM
    What about the flywheel key? Have you verified it is not sheared?
    jsnmsu's Avatar
    jsnmsu Posts: 2, Reputation: 1
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    #3

    Apr 20, 2008, 07:56 PM
    I checked it when trying to find the cause of no spark. It looked fine then, but I haven't checked it since I've replaced the magneto. I have thought about checking it again, but I don't really think that's the problem.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #4

    Apr 20, 2008, 09:33 PM
    Flooding is a typical carb problem. Take apart, clean and re-assemble.
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