Engine racing when cold

[jcf1]

Recently, when starting my bike (2000 rry) from cold, if the automatic choke kicks in it goes to 2000rpm as normal, but if I blip the throttle the bike sticks at about 5000 revs. It stays bang on at that, unless I kill the engine and restart. It started doing it a week or so ago, and has now become a more regular problem.
Once its warm, its fine. Could this be a problem with the choke, or the FI or ECU? Its happened while the bikes been moving once too - and obviously I'd rather rectify it!
Anyone had this problem or got any ideas?

[Tifosi]

Check that the idle air control valve isn't sticking. If it is, it will leak air into throttles and cause then motor to idle high or eratically.

[jcf1]

That's the sort of thing I was looking for! Thanks Tifosi, I'll look into that.

[jcf1]

O.K.....next question - where the hell is it? Should I look for something attached to the throttle bodies or the air filter housing, near the intake air temperature sensor? Does it have any discerning features I should look for?
Damn it new bikes are complicated.....:confused:

Also the idle is definitely not erratic as such, it hasn't done it for a couple of days now. I can often make it happen by blipping the throttle, but haven't tried this lately. Even when it sticks at the high revs, it sticks at exactly those revs rather than being choppy or rough.