Thanks for all the comments (and the Hall sensor offer). I've been moving house so all hectic and no time for internet for a while.
Bowser - How did you solve your fuel filter problem? Yor situation sounds very familiar especially as this happened after I moved the tank to replace an ignition loom, and then what happened next (read below)
So, here's an update of my problem:
Got a trailer and booked it into Garage. Just before I loaded it on trailer gave it a little go, all electrics on but as soon as I pressed starter it all died, so loaded it and off on its 2 mile trip to mechanic.
Got a call from mechanic a couple of days later to be told bike was running fine and had been since I dropped it off. They had done nothing apart from start it daily, test ride it and refit the bolt that secures the tank (I took it off and it's such a pain to get in on my own I got them to do it as I asumed they would have the tank off anyway). I picked up bike and have been on a couple of short rides and all ok. So I was totally confused, but as per Bowser's post,. maybe my fuel filter got bunged up and the bumpy trailer journey to the garage dislodged it. The garage also always kept bike on sideside (which I dont) so maybe the very 'gentle' angle and gravity helped.
So my final question, if my Hal sensor is knackerd, could it come back to life for a short while, or is it once its gone its gone?
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