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    craack12345's Avatar
    craack12345 Posts: 2, Reputation: 1
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    #1

    May 7, 2009, 10:59 AM
    12 hp briggs and straton
    I have a early 80's craftsman lawn tractor. It's a 12 hp briggs and straton. It will not start with the air cleaner on the motor. If I take the cleaner off it starts, once running I can put the air cleaner back on and it will run like normal.
    21boat's Avatar
    21boat Posts: 2,441, Reputation: 212
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    #2

    May 7, 2009, 02:25 PM

    So killing engine by suffocation. I like to do that to many motors.

    The problem there is the carb is starving for air plane and simple. Ran an old outboard boat motor cover off until I fixed the exhaust donut.

    Is it running rich when you run it? Is the air filter actually clean ? ( had to ask)

    Look though air filter with a light to see if you see light through it. If not is to dirty,

    Does it smoke with the filter on?

    If I had the All the briggs engine numbers I could teak this better
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