The 2005 Ducati MotoGP bike in the paddock before a run - Cholmondeley Pageant of Power, July 2010

Ducati 450 Desmo Silver Shotgun, Jahrgang 1971

Ducati 450 Desmo "Silver Shotgun", Jahrgang 1971,

You seem to like technical drawings, well, here's another one of the Ducati single's head; zoom in to see details in a much sharper image; short reach spark plug thread is only 11mm, often damaged!

Note: single cam (N); judicious rocker (R) geometry gives normal valve timing diagram

R22/53 NSU twin; Zoom in and admire the engineering

Oelspiegel and Oelpumpe means oil level resp. oil pump. Good old Richard Küchen was concerned by aestetics rather than thermodynamics; Bad guys called his engines 5 or 6K-motors meaning: "Küchens Konstruktionen Kennen Keine Komplette Kühlung" I don't have to translate. But RK did not lack imagination!