Another Stutterer

[Soapy]

Thanks for all the help so far folks. I have just checked the TPS Sensor iaw Dcocks link. Disconnecting and reconnecting with the ignition on indicated 10000 on the Rev Counter. Adjusted to read 5100 (after spending £13 on a Security Bit set). What symptoms would have that given me and surely the bike would play up from the start? (can't understand how it could have moved the tamperproof screws were really tight). I've ordered a fuel filter just for peace of mind. I will try as you suggest red98 when the weather clears up. Unfortunately the weather isn't great at the moment and the bike is normally stored in the shed but there is no room to work on in there. Cheers John S