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I have a lawn man mower. 6.5 hp b+s motor ohv. when it starts up ,its in full throttle. I dont see any adjustment to slow it down. It eats up the gas in the carb faster than it can be replenished, and dies. If you wait 20 seconds and try it, it starts up , and same thing. And it only runs for about 30 secs. bill

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  • Keith Dickerson
    Keith Dickerson Jan 06, 2014

    Sounds like a governor problem. If no one messed with any springs or rods on carb or throttle adjustments then it's internal. Governor is inside motor casing and may have come apart as the gears that drive it are plastic. Also check carburetor throttle shaft to make sure it's not stuck and works freely. You be able to throttle down motor at carb with moving the throttle shaft.

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Sounds to me like you have governor problems. you may want to take that to a shop.

Posted on Mar 11, 2009

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