My left hand 930 carb has been leaking around the tickler-steady rapid leak. The tickler spring seems OK. It only leaks when I open the gas tank valves. There is no leak even when you can see gas in the line and the tank valve closed. It seems that the float bowl must be over filling. I rebuilt the carbs using the info provided by John Plewsy (Lunmad) in his U-Tube videos. I did not replace the folats themselves but they appear to be set correctly. The bike is a 1965 Triumph Bonnie.