Right, just spent the last 30mins on the phone to Dyno Tech in Tadley UK - 01256 881 711. They are going to give the bike a complete overhaul, replacing all fluids and oils, check all wheel bearings and replace if needed. They will be removing drive shafts, re-grease splines and check output(?) bearings, replace fork seals and oil and change to grade 7 (as recommended on here), remove throttle bodies, clean, replace vacuum pipes etc new plugs and leads as needed. Once done, will run up on dyno and then re-tune using TuneEcu and map to the bike to get max mpg/power/torque/efficiency and re-run on dyno. Price for all this is approx. £800.00 +vat. Booked for 17th Feb and will be there for a week! More updates to follow. Will probably cost a bit more but it has to better than having a complete half wit fumbling about with a couple of spanners and swearing a lot