The 1967 Sportster aquot;dressed upaquot; for touring The brochure for described the headlight nacelle as aquot;a real beauty . . with aircr, ... 1969 was the last year for magneto ignition on the XLCH, as this model went to the battery system found in the aquot;highwayaquot; version. ... Throughout its history, Harley-Davidson has drawn on racing-induced technological improvements and is one of the reasons the ... A spring return external throttle cable was introduced in 1975, courtesy of the Federal government.