Well I got about 5000 miles under my belt on the 1100 wing that I picked up this spring which is about equal to what has been put on it the past 18 years. Getting the bugs worked out of it the gas mileage has been steadily climbing but I’m still not in the low -mid 40s where I should be. It accelerates smoothly and idles smoothly and all four spark plugs are burning identical and pretty much dead on where they should be but I think there is some problem in the carburetion. When transitioning from throttle off to soft acceleration sometimes it won’t pull all four cylinders evenly and nothing that you do tends to cure it until it decides to cure itself. I have not pulled the float bowls on the carbs yet but I have pulled all the slides out of the throttle bodies flush them out with carb cleaner and wiped them down. When putting them back in they seem to bounce very freely in the throttle body with no sticking so I don’t think my problem is there. I’m thinking it might be the air cut off valves but I’ve never diagnosed them before, I’m not sure what to look for. Anybody know how to tell if the ais a problem or not?