engine stalls when applying any throttle
just went to start my '09 after it had been sitting in the garage for about a month. had a hard time getting it started, and any use of the throttle would kill the engine. once it warmed up it couldn't get beyond about 1800 rpm's without stalling. the choke had to be fully applied for it to even run (just barely giving it any more gas killed it, as did backing off on the choke). this bike is completely stock and was running great before my vacation about a month ago. now i can't get it out of the garage. any ideas?
thanks so much in advance.