Registered Forum User
 Montjuic
    Posts: 79
 Join Date: Jan 2004
 Location: High Peak, Derbys
  
    
      Sorted! 
  Neil at Cornerspeed (01623 758877) suggested cleaning the connector contacts for the crank position sensor or the throttle sensor- it turned out to be the latter, green corrosion cleaned off & WD40'd and it's like a new bike. I'll have to give it a run (Wales next w/end for a stag do) to be sure, but it's actually rideable now, so I'm confident it's fixed.
 
 Thanks to Neil and everybody else who contributed...
 
 You SHALL go to the ball, Cinderella!