The serial number tag is located on the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Situated among the thumb screws above the steering tube. Yamaha has committed to obtaining carbon neutrality inside our product line by 2050. Our HARMO electric propulsion system is an exciting first step https://sergiothzlb.blazingblog.com/36835128/the-greatest-guide-to-yamaha-6hp-outboard-fuel-mixture