Engine ID

ENGINE SERIAL NUMBER [1]
Example A20A1-1000001


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

MODEL YEAR [3]
1987 1

EMISSION GROUP [4]
California 0
49ST (Ohio made) 2
49ST 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.