I did a very bad thing. I started my 1150 GS, quickly ran inside to grab something, got distracted, and 30 minutes later, I found my bike in a thick cloud of smoke. I melted the Oil-view window and a couple of very minor plastic mounts, but from what I can tell, I got Lucky. (the bike hadn't seized and plenty oil was still rushing out, Oil Pressure Sensor is still intact) The one thing I don't know is how can I remove the heat stains on the Engine and magnesium cylinder heads? I've heard Vinegar works for stainless Steel, does anyone have any other suggestions?