i had my regulator fail during a track day on my 916, although i scrounged a charger to top it up between sessions, if ound it didnt really manage to put in enough between sessions, you can notice a steady decline in power towards tthe end of the session or at least i did, and at one stage i came in early as it was so bad, ifelt it couldnt be doing the bike any good. it seems that the injectors require quite a bit of juice, and this is what it seemed to be affecting. you might manage it if you had a spare battery and a couple of chargers. best of luck |