yz125 rough idle problem! Please help

[~03'yz125~]

I've had my 2003 yz125 for about a week now and so far there have been no problems and i absolutely love it! It starts on first kick and runs like a charm....TONS of power! However I have noticed that even when its already warmed up and i start it(with the choke off) it idles high for about a minute then the idle reduces to what sounds close to normal. why is it doing this??? Also when coming to a stop and pulling in the clutch it will start to idle high. Any help would be amazing :)

 

[BSWIFT]

Sounds like an air leak. Check the boot between the carb and the head. There are other places to check for a leak but start there.