What year is this motor Yamaha 4AC 6EO S 102260?

To determine the year of a Yamaha 4AC 6EO S with the specific serial number 102260, you would typically reference Yamaha's production codes or consult an online database or forum dedicated to Yamaha Motorcycles. Yamaha often uses the first few digits of the serial number to indicate the year of manufacture. If you cannot find this information directly, contacting a Yamaha dealer or specialist could provide the most accurate year information.