Just went over 3,600 miles on my '15 F800GS. I finally got a center stand installed thanks to the guys in the shop at Morton's BMW down in Fredericksburg, VA who cut down an OEM stand to fit my factory-lowered short-man bike. This weekend I was planning on finally getting around to taking some of the slack out of my chain. It gets a little slappy during acceleration and deceleration, so it needs to be tightened. But...this will be my first time taking a wrench or socket or hammer or whatever to a part of my bike that goes around and around and could potentially kill me if I screw it up. At least, in my mind, if I don't get everything all perfectly aligned, the rear wheel is just going to come off the next time I'm doing 75mph down the Beltway. So, any of you folks - once you stop laughing at the noob idiot - have any pointers? Things to look for or avoid, tips or tricks? I'm not a complete moron with tools (I did manage to install my crash bar and bash plate with the loss of only three fingers and one toe), but this will me my first time tackling this particular job, on any bike... Muchas gracias!