I have a '99 model 900RR it recently was repainted and had all the plastics off and gas tank. It was down for about a month and on yesterday once put back together the bike starts fine and I let it run until it was warm. But, as soon as you drop the choke it dies. Also if the throttle is turned a hair while the choke is drop it will run just fine then as well. what could the problem be?

 

Maybe carbs problems.. i'd try cleaning them thoroughly and sync them.

 

carb clean

 

Yeah its been sittin for a month...probably have gunk in tha carbs...clean them up and sync em you should be good to go after that.

 

I had the same problem after I bought mine. Your secondaries are clogged more than likley. Mine had sat for 4 yrs. But sitting for 1 month should not cause that problem

 

had a similar problem with an older bike. after much time wasted it turned out to be a faulty fuel tap restricting fuel flow. just an idea. good luck