Hi. I have a burgman 650 2003 and my problem is that it won´t go past 80 km/h. I get error 54, witch suggest that there is something wrong with the secondary pulley sensor. Others have told me that that sensor rarely fails, since it is just a magnet. Now I begin to think that it could be the stopper bolt. I replaced it last year, but my problem remains. Can it be the stopper bolt is in the wrong position? If it is, how do I get it right?