I have been having trouble getting the idle mixture set on my 83VR. I have the airbox off now and noticed there is fuel dripping from the slide needle on 3 of them when the engine is running. Thought to myself that the float level was too high so I put a clear tube on the drain to check. Supprising all of them are right on, 14mm below the carb centerline. The carbs were cleaned last winter and all gaskets were replaced even the jet block plugs. Before I remove them and take them apart I just wanted some input on what might be causing this.