Thought I would post this up for everybody's reference. Maybe a mod would like to archive it?

I saved this from the FC list earlier this year. Credit should go where credit is due, so thanks John Z.

RX-7 86-88 (8/85 - 12/88)
JM1 FC 33 1 * G 0 ######
JM1= Mazda Passenger Car
FC = RX7 Series
33= Coupe
35= Convertible
1= 1308cc 13B rotary non-turbo
2= 1308cc 13B rotary turbo
*= Check Digit
G= 1986
H= 1987
J= 1988
0= Hiroshima Plant
######= Serial Number

RX-7 89-91 (12/88 - 7/91)
JM1 FC 331 * K 0 ######
JM1= Mazda Passenger Car
FC= RX7 Coupe
33= Coupe
35= Convertible
1= 1308cc rotary non-turbo
2= 1308cc rotary turbo
331= Coupe w/auto shoulder belt
332= Coupe Turbo w/auto shoulder belt
333= Coupe w/o auto shoulder belt
334= Coupe turbo w/o auto shoulder belt
351= Convertible w/o airbag
352= Convertible w/ airbag
*= Check Digit
K= 1989
L= 1990
M= 1991
0= Hiroshima Plant
######= Serial number

Build dates by serial number:
Model year-----Production Date----Serial Number
1986--------------8/85 - 6/86------100001-200000
1987--------------6/86 - 7/87------500001-600000
1988-------------7/87 - 12/88-----600001-700000
1989------------12/88 - 12/89-----700001-800000
1990------------12/89 - 11-90-----800001-900000
1991--------------8/90 - 7/91------900001-950000

 

I couple of minor tweaks:

The JM1 in the Vin stands for Japanese Mazda passenger car.

This is different than the US built Mazdas, and represents that the car was assembled in Japan. The US built Mazdas will use F4 (Ford Built North America) or YV (Mazda built in North America)

The majority of the Japanese manufactures use this designation. For example: JT Japanese Toyota, JH Japanese Honda, etc.

 

Nice info!