2011 KX250F won't idle..runs ruff

My friend and I both bought 2011's KX250F's a few months ago. Both bikes have about 10hrs on them.

Today his bike will not idle. Symtoms are similar to when intake valves tighten up...and the bike will fire, but it breaks up really bad and puffs out a rich puff of smoke when tring to keep it fired.

I checked the valves and the are all spot on. Changed plug just for hits and giggles and disconected most of the plugs...and made sure they were clean and dry.

Any suggestions? I might pull the throttle pos. sensor off my bike to test it. Tring to run through all the stupid stuff before we take it to the dealer.

Fuel pump or ign. box?

Please feel free to offer advice

Mine just started doing the same thing at 10 hours....Im thinking TPS also. I see there are non in stoke anywere.Maybe a recall?????

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