That bar is a common fixture on the K-bikes of the '80s & '90s. It protects the valve cover or the crankcase cover if the bike gets away from you. It's chrome steel and attached at points above and below the valve cover (in this case on the left side) of the engine. If that's still unclear, check part #46 71 2 316 371. After some consideration of that plastic plug in the end, I've decided to apply heat to the steel. Perhaps the plug will then come out willingly.
BTW, measuring the cover gasket was brilliant. I'd have never thought of that. After your discovery I'm wondering if I'll be shooting myself in the foot if I don't replace it on a bike from 1996. But, boy are those guys expensive!
BTW, measuring the cover gasket was brilliant. I'd have never thought of that. After your discovery I'm wondering if I'll be shooting myself in the foot if I don't replace it on a bike from 1996. But, boy are those guys expensive!