Serial Number Breakdown

ENGINE SERIAL NUMBER [1]
Example A20A1-3000001

ENGINE TYPE [2]
With carburetor A20A1
With fuel injection A20A3

MODEL YEAR [3]
1988 3

EMISSION GROUP/FACTORY [4]
California/Saitama 0
California/USA 1
49ST/Saitama 3
49ST/USA 5

SERIAL NUMBER [5] Sequential


[1] The engine serial number is located on the engine block near the ignition timing inspection window.
[2] First five digits (prefix) of engine serial number.
[3] Sixth digit of engine serial number (first digit of suffix).
[4] Seventh digit of engine serial number (second digit of suffix)
[5] Eighth through twelfth digits of engine serial number.