EXUP started squeaking today so I decided to strip and lube it. I've only had the bike 7 months so this is the first time for me...!


Anyway, everything came out fine but it has obviously been a problem for someone in the past. On first look it seemed like one of the bolts had been replaced with a stud and nut. After dismantling is was clear that the stud was just welded to the cover plate and doesn't actually go into the exhaust (see photos below). The original sheared bolt is still in the exhaust.


The stud was obviously welded to the cover plate as an easier option to ensure there is something to fix the cable bracket to without drilling and tapping the exhaust. I've cleaned and lubed the valve and everything seems to work okay with no more squeaking. Question is, is leaving it as it is with effectively only 2 bolts holding the EXUP in place likely to cause any problems or should I stop worrying and leave well alone. I obviously don't want to attempt to drill and tap it if not necessary.