engine not running rich enough? dixie chopper

Jim1944

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Jul 2, 2013
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I think I already did this but am new to this so will try again
I have a 2001 50" Chopper with a 20 hp Kohler engine. For the last year it takes spells where it will only run with the choke pulled out. so far I have done the following
cleaned both gas tanks,
changed fuel filter
replaced all fuel lines
clean and replace air filter regularly
Dealer replaced carb with a new one last fall at a cost of around $ 300.00
the mower is still doing it. when I first start it, it will run for about 15 or 20 minutes, then start faltering and I have to pull the choke out and then it runs fine.
can anyone help me
reply to musician@ccrtc.com or to this thread.
thank you
Jim
 
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