Success!  Ok, sorted the problem with the help of my mate. Wiring fault in the loom caused the fan to run all the time on switch on. There is a Green Black wire which runs from the Clocks to the relay. The green black was down to earth and causing the relay to switch on immediately the ignition came on. Rather than strip acres of loom we ran a new cable from the clocks multi-plug back to the relay, soldering each end and hey presto, Back to normal.
Hope this helps anyone with similar problems.

Now I just need to order a new back tyre for our touring holidays in Germany.
 

Aah The clocks! Will try and measure the Thermo sensor, but have managed to get one on ebay for a tenner, just in case.

I run Pilot road 3 and have always had great performance from them. Good in the wet as well. Not tried the 4's yet but off to Germany in July so will trade up for that.

Hi Guys, hope someone can help? My coolant fan has started running as soon as the ignition is switched on and does not go out when put into gear. I've checked all the connections I can find and no corrosion evident. Anyone got suggestions what it might be?

My 2002 fazer's Exup is rattling bad, 37k miles. Can it be removed without any harm? Thx