And what an excellent guide this is Dave.
As a complete and utter novice Douglas owner (of nearly two weeks now) you referred me to John's guide in an earlier posting - I immediately viewed and downloaded it, bought the illustrated parts guide, which I received today. Tonight I have read them in conjunction with each other and I could see daylight.
John Holmes guide is brilliant and whilst much of what he explains seems currently beyond my own mechanical capability I reckon using his guide I would have a jolly good go if I had too.
Thanks for highlighting it's existence and a great big thanks to John Holmes for taking the time and trouble to share some of his expertise.
Matt Embleton