please help quick

[300EXrider02]

Alright i went outside to ride the 300, right after a oil and oil filter and spark plug change, it ran fine, perfect, until an hour later i hit a small snow jump, and when i landed and drove like 30 ft i realized i couldnt go by 1/2 throttle, almost liek teh clutch was loose, the choke is off, i think it might have something to do with the carb, it will only go 1/2 throttle when it is pinned (thumb is all the way down) and makes all these wired noises...is my needle in the carb loose? this really sucks casue i t could be soemthing big

[phatswinn]

i think ur carb may have came loose from the intake boot, or maybe the choke came down upon landing

[300EXrider02]

well, this is what it feels like...once u get past like 1/4 - 3/7 throttle, it jsut stays that way, it doesnt decrese or inrease revving, almost like the throttle is stuck and wont go past a certain point, but if u give it full throttle there is no difference from teh 1/4 - 3/7 throttle...

[TRX_Thumper]

take the carb off and then take the black cover on the right side off...pump the throttle and look an see if there are any problems...somethings broke or came loose...

[4TraxRider]

Get any snow in your airbox? Might have sucked a little into your carb and won't let it run right.

[john308]

I had the same problem on my 400. Take the top plate of the carb and see if the plastic piece has come off, that is the linkage that allows the needle to raise up and down.