I have recently had a couple of warm starting issues on my Norge. It starts fine from cold, even after being left for a couple of weeks, and if you stop it and then restart hot, there is no issue. The problem has been when it has been stopped for a few minutes. Initially it will fire up, but then stops immediately, and then the start button has no effect. You can turn the ignition off , and then it might fire again and then stop. Eventually it will start, seemingly when a bit cooler. Once or twice I saw the red triangle warning light flash on the dash as it stopped, and once I saw a symbol saying ECU with a representation showing an electrical plug disconnected. I am guessing there might be a dodgy connection to the ECU, but on looking at the manual I am not sure where the ECU physically is on the bike.
Any ideas?