Need all the info I can find to attempt to adjust the desmo valves on my '84 SD900. The workshop manual at ducati meccanica contains very little break down information for a newbie such as myself. It's becoming quite expensive at the nearest ducati mechanic willing to service it. So I would like to take it on myself. Also any tips from the dyi folk, do's and don;t's, specialist tools etc.,. much appreciate it. vifer