Well, I would like to disagree, based on the records below. Of cause no guarantee, just reciting:
(K)Z1300 A1: (1979)
Frame no : KZT30A-000101 - KTZ30A-005618 Engine no: KZT30AE0001010 - KZT30AE005309. Only one colour is available: ‘Starlight Luminous Blue’ with decorative stripes in gold
(K)Z1300 A2: (1980)
Frame no: KZT30A-006201 - KZT30A-010993 Engine No: KZT30AE005801 - KZT30AE012373. Only ‘Luminous Ruby Red’ with decorative stripes in gold.
(K)Z1300 A3: (1981)
Frame no: KZT30AE011501 - KZT30AE014100 Engine no: KZT30AE012401 - KZT30AE014800. KAWASAKI now offers two different colours: ‘Luminous Holly Green’ with deco stripes in gold & lime-green as well as ‘Ebony’ with deco stripes in gold and red.
(K)Z1300 A4: (1982)
Frame no: KZT30AE014101 - KZT30AE015439 Engine no: KZT30AE014801 - KZT30AE015946. Also this model is available in 2 colours:
Luminous Passion Red’ with deco stripes in black & gold and ‘Ebony’ with deco stripes in red & gold.
(K)Z1300 A5: (1983)
Starting with frame no: KZT30A-015901
ZG1300 A1: (1984)
frame no: ZGT30A-000001/ Engine no: KZT30AE016401. This model is also available in red and black.
ZG1300 A2: (1986)
start with frame no: ZGT30A-002801 in the same colours as before.
ZG1300 A3: (1987)
start with frame no: ZGT30A-002801.
ZG1300 A4: (1988)
start with frame no: ZGT30A-003501, available only in black.
Again, that is what I have.
Maybe it helps.
Holger
This is the best list we have to date. Thanks Holger for reposting What would be nice to have as a resource is an Excel file list with 4 columns - Year, Frame Number, Engine Number and Additional Information (paint colors etc)
KawaBCN has an engine with a different series number (AG) where the list posted above only shows the engines with an (AE) series number, So what we have in the existing list is obviously incomplete.
I'll suggest that the AG series may be the engines used in the European models??