intermitent exup fault,any ideas?

[Muddy Rutter]

I read your post with interest as I have been sorting out the EXUP valve on my 2003 1000. Everything was fine when I tested it  last night after a swap out with a used valve from EBay. This morning I pinched all the bolts up and put the cover on. Went off to play in the sun this afternoon and immediately the rev counter was showing the usual 0 - 7k message. Back home I found that the cam retaining bolt was pinching against the cover and stopping the valve moving. Transpires that the cam retaining bolt head  that came with 'new' valve was about 5mm deep against the 3mm or so for the original. Swapped them over and alls well. I also used just one washer instead of the two that came with the valve


One other thought - have you checked and cleaned all the electrical connectors in the servo motor circuit? Hope you get it sorted - good luck. Nick.