I just got round to looking at the bike tonight. The vacuum tap is shot, passing unrestricted so obviously that, along with a leaky float valve has flooded the engine, though i'm not sure which came first.
Plan is to replace the vacuum tap and now that the tank is off, pull off the airbox, battery box, coil pack etc and take the carbs off and give them a clean and maybe replace the float valves with some neoprene tipped ones. Might also replace all the pipes and tubes in and around the carbs too while they're off. They're all at least 22 years old now.
__________________
..
~
|