how to.. decode engine # 84 250r

[1986atc350x]

anyone know how to check engine serial # to
determine year of engine?my numbers are..
TB06e
2310442

[MonroeMike]

http://www.3wheelerworld.com/showthread.php/141286-Honda-Engine-Serial-Numbers

[1986atc350x]

hey thanks a lot that was helpful,just makn sure the
its the correct motor for the bike seeing how the 84 has
the highest compression ratio.