The previous owner must have rejetted the carbs on mine. I'm getting 33-34 AFTER adding the K&N, V&H and new plugs! True, I ran carb cleaner thru the first 3 tanks, but I should be getting around 40. I don't have a tach, but I've normally shift at 25, 45, 55 and 65 mph. Should I check to see if my brakes are dragging?