Thanks for your input Kristjan, absolutely agree with dont want to mess with timing but which pic-1 or 3 matches the manual best and if its pic 3 is the difference enough to let the bike run still but sound like a bag of nails..? Nice one Badgerkdd too-thanks. BIke was rebuilt because one of the exhaust valve had burnt due to there being no clearance at all on it. Head was taken off and all the valves that needed reseating ( 3 of them) were done professionally and i tested them all with diesel overnight afterwards- ie check the diesel was still pooled in the upturned head in the morning. Clearance re-shimmed on that 'no clearance valve' and then all others re-checked and then rebuilt with new head gasket. So not too drastic but still head off etc. Engine ran nicely enough before-no nasty metallic noises but unfortunately i didnt think to see how it was timed etc before it was taken apart..