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Carburetor flooding,very hard to start,mixture very very rich

My troy bilt lawn tractor has a briggs and stratton 21hp ohv, twin V engine. Its running very rich,and its has become inpossible to get started,and when it does start,black smoke,till i run it up to fast setting. New plugs last week,and the fuel filter has put on last year,it has probably 50hrs on this inline fuel filter. Can the carb be adjusted my myself? Thanks Jaxon1949@triad.rr.com

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Posted on Jan 02, 2017

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SOURCE: tory bilt lawn tractor replaced with new battery

What most likely happened is the diaphram in the carberator has burst. It is a simple fix if you take your time, use reliable resources and be patient. The parts can be picked up at the local hardware store.

Posted on Mar 25, 2010

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When the float in the carb sticks, it allows fuel to drain into the cylinder, that runs pass the rings into the crankcase. When the crankcase is full the pistons cannot go down, and the starter won't turn the engine. Drain all the oil gas mixture, and refill with proper oil. Replace float, needle and seat in the carb bowl. Throughly clean fuel passages, and bowl. If motor won't turn, remove spark plug and turn over engine a few times to remove gas oil mixture from the cylinder too.

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Tory bilt lawn tractor replaced with new battery


What most likely happened is the diaphram in the carberator has burst. It is a simple fix if you take your time, use reliable resources and be patient. The parts can be picked up at the local hardware store.

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