I couldn't find this in any thread so I will ask my question and hope that it hasn't been asked many times before. I have an 11hp Honda stationary motor that I use for various tasks and lately it won't idle properly. More specifically, once it warms up it surges from an near stall to about 1/4 throttle in a rythmic steady pulse. I realize that the governor is probably trying to compensate for something but the carb has very little adjustment. Any help would be appreciated.