2012 Kx250f high idle

I have a 2012 kx250f, when I ride through trails my bike idles high, even when I pull in the clutch it's still idling high. It doesn't get quiet like it should when the clutch is pulled in. Sometimes it sounds like the fast idle is pulled out. It stays high in revs and its very loud. Anyone know what it could be?

Cable issue?  You can also adjust the idle with the fast idle knob.  First two places to check I guess.

Just like Dragon said, check the throttle cable for any binding and check your idle adjustment knob, probably need to crank it down a few notches

check the air to gas, 

Turn the cold start knob clockwise to bring the idling down.

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