BMW R850R Photos, Reviews, Repairs
You can't really tell from this photo, but the handle bars are reaonably high and rear set, making for an upright, comfortable riding position.
The R oilhead bikes have fuel injection, perhaps starting in 1995. These bikes are 2 cylinder, horizontally opposed (boxer) engines, with 4 valve cylinder heads, and overhead valves. The cam shafts are chain driven and are in the heads, but not "overhead" in the usual way. There is a short pushrod between the camshaft and the valve rockers. There is some air cooling, but the "oilhead" bikes are largely cooled by oil and have 2 small oil coolers. There is one on each side, just in front and above the cylinders.