Well, after a very very expensive week at the dealer, got bike back and all was fine….then started missing, backfiring and then cutting out.Decided to have a look myself. After testing the hall sensors, one started to fail after 5 minutes with a hair-dryer aimed at it. New Hall Effect Sensor ($25.00) from JayCar did the trick with the help of a tutorial on the web. Now running fine. The dealer wasn't to know that the hall sensor was starting to fail and it did get worse very quickly. If anyone else gets this sort of problem, let me know and I can send you the tutorial for the fix including re-doing the wiring. 😉