Well,it's been a while but the 200quidaberg (as it is now known) is finally up and running. Actually it's been running for months, charging was the problem! I kept throwing it to the back of the shed and riding something else but eventually replaced stator, regulator and start relay...and it still didn't charge. Eventually I ripped all the manky wiring apart and redid large parts, all good now.
I really should have known by know that when old bike electrics play up it is always an earth fault (same as when I crash, it's always gravity's fault...)
Little spin on the local trails yesterday -lovely. Light, feisty, stable and the little magic button actually works every time.
Things I have learned:
-There is some beautiful engineering and concepts in that motor, not least the balancer arrangement. The steel clutch basket is a work of art - high quality, light, virtually unbreakable
-Its a maintenance access nightmare. Battery and electrics live in the wettest/muddiest possible place (I relocated mine under the seat)...need tank off to top up the rear brake reservoir...carb access is 'orrible...low quality wiring and connectors, routed by apes. I think the great Swedish engineers designed the big bits, then went off to the sauna leaving some blokes ex Fiat and British Leyland to finish the details.
-the decompressor spring/ mechanism is the spawn of Satan
- the kickstart mechanism is the b@stard son of the decompressor mechanism
- cheap multimeters aren't worth a toss