juk

Hi there, Just been given the above from a neighbours garage & would be grateful for a few hints.I have sent off for manual but would like to get a little further without waiting for it to arrive. Managed to get motor running after thoroughly cleaning out carb - bike hadn't run for over 10 yrs - but would be grateful for any info on carb settings. Any clues relating to the 4 position ignition key - what does each do? Also what is spec. & amount of gearbox oil required? Any info gratefully received.