Funny idling?

[02blzrx]

So I was out at glamis this weekend (Perfect conditions BTW) The first day bike was a champ,
second day bike ran fine but the idle was iff,
Either it would Idle real high and I checked the choke it was off, thought I mess with it, so I turned it and the rpm dropped, turn it off and right back up.
So then we go for a ride come to a stop and its idling so low it wont stay on. So we finish our ride and get back to camp and its idling fine? Anyone have a guess as whats going on, meanwhile during the rides it had fullpower.

[bigredhead]

check your air filter for a good seal !! sucking sand is my guess.

[diggerzmound]

Sounds like a vacuum leak, inspect your intake really good..

[trikezilla]

eeww....sucking sand into a motor. can you say uncool?? i would have to say the same thing: check your intake and all seals