Here ya go...shiny engine parts ahoy!
http://forums.pelicanparts.com/bmw-r...-underway.html
Probably an urban myth or something but I've heard that if you keep the bike on the sidestand, because of boxer configuration the oil drains from the r/h cylinder and and collects in the l/h one and when you start the engine you hear lots of noises for a few second before the oil gets back to the r/h head...
Might need to rock the bike side to side or crank the engine on the starter only to redistribute the oil before it gets started properly. Or fit a rockerlube maybe...
Sorry for all the excitement and weird info! I was interested in these bikes a while ago but would cost too much for me at this point