Todays Success / Fails

[MAR5H7]

So as most of you know im a newbie-for-definate yay!!!

managed to fit a H model ZXR 400 Radiator to a ZXR 400 L model (wasnt too difficult actually)

So now my bike is once again cooling itself properly and I bets glad to feel some coolant running through properly

the fails - yh.....
It idles at 4k revs
I was running along with it the other day and it was fine, met my mates, went up the road and then suddenly 4k revs was its idle speed O.O
worrying
Recon its an airleak on the carbs
but being a newbie, radiators and dismantle's my limit, actually fixing something is beyond me xD

hopefully me dads about soon to do it though
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Ex: CBR 125 R 06', ZXR 400 96' (RIP), Bandit 650 06'
Owned: SRAD 600 97'
Current: YZF Thundercat 600 96'