Sounds like you may have to adjust the carburetor idle. Your manual should have a diagram that shows you where the idle speed screws are (1 per carb).

If your throttle linkage is adjusted correct try a 1/4 turn out on each carb and see what that does for your idle.

 

Thanks I am off work tomorrow and will check into that. What dumbfounds me however is that it seems to idle ok when I first start it up, but after the engine warms up and I stop, that is when it pretty much is shutting itself down.

 

Just keep track of how much you turn each one so you can go back to where it was if adjusting them doesn't resolve your issue.

 

Did you fill your gas tank? Most if not dealers add extra oil to the first tank and leave it fairly close to empty, thereby causing a condition that doesn't help the engine idle properly and possibly fouling the plugs. I just purchased a 14 570 and it did the same thing until I filled it and put a few more miles on it. Other than that the above info is helpful.

 

I ended up taking it to the dealer because it was not the idler screw. Turned out to be that throttle position sensor was too loose. So basically when I let go of the throttle, it was reading that my throttle was wide open and was shutting itself off. The dealer has assured me the problem is fixed, but since the snow we had has melted now, I have not been able to test it fully myself as of yet. Thanks for the suggestions and help tho folks.