My ST3s reached that point of needing service, the dealer performed the 600 mile check but I wanted to explore the valve adjust and belt change myself. Call me stupid. After a little research bought the desmo maintenance book and EMS shim kit. Both highly recommended. First the disassembly, not as logical as one may hope for. Ended up taking the tank off for better access, radiator as well, battery of course but left the intake system in place. First the belts, all pretty easy, no issues. Instead of buying the special took to turn over the bike, just used a socket on the counter shaft nut and 6th gear. A better TDC mark or sight glass would be great.. Then found that removing the plugs was not straight forward, the clearance on the two on the belt side is very small, sure there is a special tool, but I ended up grinding an extended socket down to a minimum thickness, and yes they are very proud of their plugs based on the price. Then the valves, the book offers a great bit of advice, go slow the first time and take it in phases. As I found each phase was a bit tricky for the first time, as an example the lifter on the exhaust valve would only move over when the rockers on the intake were moved over first, I know it makes no sense but worked for me. As it turns out, 5 of six valves needed adjustment, the opening shims are easy, but the closers are a bit of a pain. Not able to find any forceps easily so made my own valve holding tool from a pair of needle nose vice grips that I modified. These worked great. It is a logical system and was actually fun once the confidence was built up. Not something I want to do every month, but I will do again in around 6k. For those of you on the fence, give it a shot..it is rewarding when it starts back up.