Honda inline-four motorcycle engine right side with polished cas…

Close-up of the right side of an air-cooled inline-four motorcycle engine, showing polished aluminum cases stamped "HONDA / MADE IN JAPAN", finned cylinder barrels and valve cover, a bank of slide carburetors, and NGK plug caps fed by yellow ignition leads. Chrome header pipes with a coiled heat-shield spring curve down past a chrome side cover on a dark blue frame.

AI caption March 2006 · Photo 20 of 40