J102 and J103 were used on the old GSX-R250 motorcycles. 250cc inline 4 motors.
J103 is the engine type, 105326 is the actual engine serial.
2008
1864
2005
2012 a.d.
1972/3
its a 1986 gsxr750
2012 a.d.
07-08
That is not the serial number that looks like the engine number ull find the serial number on the steering stem
gotta find the VIN number on the fram the serial number wont tell anything but the date of manufacture of the engine
01-03 gsxr 600
SUZUKI PRINTS A PUBLICATION THAT CROSS REFERENCES VIN NUMBERS TO ENGINE NUMBERS. THEY ARE SENT TO DEALERS.