Well, it used to be called "tinkering".  Apparently, like so many other things these days, it's been given a new cooler name; "wrenching".  That sounds a little too close to "retching" for my taste, and you definitely wouldn't want to get them confused.  You see, "wrenching" is simply tinkering when it involves a motorcycle. Retching, on the other hand, involves revisiting what you had for lunch...ick.   Now that we have a complete set; a BMW R1150R (that's mine) and a BMW R1150GS (that's his) the motorcycle tinkering can begin.  Oh, wait, sorry.  Let the "wrenching" begin.  But first we have to order a bunch of stuff; filters, spark plugs, battery, oils, and tools.  We mustn't forget the tools.  Tinkering is a waste of time if you don't have tools.   Joerg spent a couple of hours this weekend in the garage getting things neat and tidy.  Then he installed suspended shop lights over the area where he parks his car...