Question about Craftsman 20 hp 42 in. Deck Yard Tractor

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I HAVE A CRAFTSMAN ZT7000 MOWER WITH A 20HP KOHLER SV600S ENGINE.I WENT TO START IT AND IT WAS HARD TO START. I CHANGE THE FUEL FILTER. IPUT A NEW PLUG IN. I CHANGE THE FUEL . NOW IT WILL START BUT IT WON'T TAKE GAS. IT RUNS HOT AND SEEMS TO BACKFIRE FROM THE MUFFLER. COULD IT BE THE TIMEING OR VALVES?

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Sounds like the float in the carb is leaking by the set.

Posted on Dec 12, 2009

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Posted on Jan 02, 2017

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Why is there gas under the air filter on a Craftsman Mower Kohler KT735 or is this normal?


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Jun 07, 2012 | Craftsman 20 hp 42 in. Deck Yard Tractor

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I have a craftsman Dlt 3000 riding mower with a 20hp kohler v twin . engine starts and runs for 5 seconds and shuts off


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Sep 18, 2010 | Craftsman 20 Hp 42" Deck Lawn Tractor

1 Answer

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Try cleaning or better yet, replacing the spark plug. Depending on age and how your tractor was maintained, there are other possible causes.
  • Gummed up fuel system
  • dirty fuel filter
  • defective or misaligned armature/magneto (part that causes your plug to spark, igniting the air/fuel mixture, thus starting the engine)
  • throttle linkage/cable problems
  • low oil level. Some Kohler engines use a low oil shut down sensor which won't allow the engine to run or start to avoid internal damage.
  • Mechanical engine problems
I hope you find this solution helpful. Please rate it thanks for using Fixya!

Nov 05, 2009 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

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Tractor won't start. Acts fuel starved. I see very little fuel in the filter which is new. I suspect the fuel pump assembly is bad. Any easy way to test the pump? 20hp Kohler engine.


you can to this in two ways. pull the out put hose off, turn the engine. be vary careful, to see if fuel comes out. or do a pressure test about 3 to 5 pds. check the tank. I have seen flays and other ?? in the tank plugging the lines. blow air throw the lines (not the pump)

Oct 13, 2009 | Craftsman 20 hp 42 in. Deck Yard Tractor

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