Usually the serial number is on a tag mounted on the bracket that holds the outboard engine to the boat.
It is a 2003 4-stroke outboard
2stroke 4 hp yamaha 6eq date of manufacture
The Yamaha F60 CET 6C5 1029047 outboard motor is likely from the year 2006. Yamaha's serial number system indicates that the first two digits after the model code typically represent the year of manufacture. In this case, "1029047" suggests it was produced in 2006, aligning with Yamaha's identification practices for outboard motors.
I HAVE A OUTBOARD C150ztXRU
According to the Yamaha guide, the outbound serial number is located on the label in the clamp bracket. The serial number is helpful when replacing your motor.
216793
235386
1981
1979/1980
it is a 1983-
2005