Yeah, I saw all the other threads on it, and have enquired at a few places that say they can refurb them. Someone might have a solution but not holding out much hope Pain in the arse not being able to rebuild them but then it' is 26 years old.
Fiddled about with the billet starter switch that was on my 1098R - want to fit it to my 749R trackbike but the 1098 wiring is a 4 wire connector whereas the 749 has an 8 block connector (with 7 wires). Worked out which 3 are redundant so will do a cut n’ shut splice next time I’m fiddling about.