Well anyway....is there a tumble weed "smiley"? Set to and changed the plugs and filter which required considerable removal of body parts but was not technically difficult and will get the oil and it's filter done shortly. Devised a Heath Robinson technique for keeping the tank out of the way which worked well (see images) 2014-02-16 10.19.18.jpgand if any one is interested this is what was revealed.2014-02-16 11.07.50.jpg