Cuts out on one cylinder after 10 min.

Blacktrain11

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Jun 10, 2016
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John Deere D140 (1GXD140EKCC324968) 22 h.p. Briggs Model # 407777 Type # 0274G5 Code # 120224YG Runs perfect for about 10 min. then cuts out on one cylinder. Has new carb. kit, new plugs, new fuel filter, new air filter, new coils. Fuel tank is vented ok, no fuel lines kinked. disconnected the kill wires for the coils and still does it. Only thing I haven't replaced is the fuel pump because I disconnected the fuel line, turned the engine over and it shot fuel about 12-14 inches. I'm at a loss. Any help would be greatly appreciated. Thank you!
 
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