K-ray, are those the same articles that are in the "articles and advertisements" section here? If not, would like to see if you can scan and submit to Mark so we can read em!
If you look on the back of the Service manual it tells which numbers in the VIN indicate production sequence!
zl900 On the '85 model, FA indicates Cal. model. On the '86 is't GA.
FB and GB indicate 49 states model.
ZL1000 it is HA and HB.
Here is an interesting theory, I have an original '85 service supplement for the zl9 and I have a new supplement for the zl9/zl1k. Looking at the new one, the '86 zl9 vins reflect production numbers, 2301 for Cal. and 4701 for 49 states, I wonder if they produced that qty.???????