You will know REAL quick if it is the throttle body carboned up. The colder it gets the worse it will be. When the engine is cold it needs more air, and if teh throttle body and IAC are carboned up it cannot get enough air in. Think of it like a choke on an old carbed engine. If the throttle body is carboned up, then the choke essentially can't work to allow it to stay running. If it doesn't want to stay running, give it a little throttle right after it starts to keep it running. After a minute or so it should idle on it's own.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR
2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD 
AND THE PINK JEEP!!!! R.I.P.
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