VIN: KZ750B-033101 <-> 046100
Engine: KZ750BE033101 <-> 046086
Colors: Luminous Brown (almost red), Midnight Blue (very dark)
Characteristics that distinguish the ’79 from the ’78: Not much. The paint color options changed, and the pinstripe design that was brought to a crisp point at the front of the tank sides, and a downward-turned point at the rear of the tank. Also, the ignition switch changed to 6 pin from 4 pin, and headlight control switch was eliminated.
This is the last year of the 4-year run of the 750 “B” Twin series, and in a larger sense, it is almost unchanged from the ’78 (though there were significant changes in ’78 from the ’77). The next year would bring dramatic cosmetic changes, then the years that follow would bring even more dramatic architectural and styling changes… but at the heart, still that same lump…
And here are a few pics to help identify the ’79 B4 (all pics are U.S. models, I don’t have any European pics).