scooters don't use powervalves so not sure, TBH i wish my bike didnt have power valves at the minuite lol.
I felt the same with my old Yamaha 350 YPVS when the clamp bridging the two powervalves generated loads of play. It ran really roughly until I located the problem.
the h100 i had 3 year ago ad 41k on the clock too.
No wonder it felt a little tired! 41K is pretty good going for an old 100cc aircooled stroker!
have you saw if your old h100 is still in use today? seeing when it was last taxed..
I'm sure I did (I looked up all my old vehicles at various points), but prior to buying the blue one in 1996 I contact the person I originally sold my old black H100 to and asked if they still had it. They wrote back and said it was a great little bike but was stolen and never recovered. The only thing that was ever found was its number plate in someones garden along with a load of other bike spares. They suspected this person of stealing bikes and then breaking them for spares