Copy of an old post:-
Still missing some info, however it may help solve one problem. There was simultaneous production starting in 1981 in both the US and Japan. We do know that a vin starting with JKAKZ = made in USA and KZT = Made in Japan. My 81 was made in Japan, despite some "information" that claims production was completely moved to the US. If I use motorcyclespecs.co.za info as well I can compile the following.
This is all that's available....
79 A1 Frame = KZT30A-000101 Engine = E00101, 6100 frame numbers, 5700 engines so we assume no more than 5700 motorcycles produced
80 A2 Frame = KZT30A-006201 Engine = E05801, no more than 5300 frames produced but 6600 engines
80 B2 Frame = KZT30B-000101 Engine= ??? if we assume the extra engines were all used for B2's then there can be no more than 1300 B2's
81 A3 US made Frame= JKAKZAA15BA-011501 Same stating number as Japanese sequence???
81 A3 Japanese made Frame = KZT30A-011501 Engine= E12401 total US and Jap. production, no more than 2400 produced
82 A4 Frame = KZT30A-014101 Engine = E14801 More frames than engines, but no more than 1600 produced (US production ???)
83 A5 Frame = KZT30A-015901 Engine = E16401 Serial changed in 84, total production unknown (we could assume similar 1982, 1600)
84-85 ZG Frame = ZGT30A-000001 no more than 2800 made
86-89 ZG Frame = ZGtT30A-002801 No Idea how many were made, probably very few.
So the total for all years is something in the neighborhood of 25,000, this number is quoted form several sources.
We don't know hoe may were made in the US vs Japan or how many went to US, VS Europe, VS Australia and so forth...
