Every model has its own unique set of parts that in shape it. Click your manufacturer below for instructions on finding your model or serial number. The serial number tag is found about the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, located between the thumb screws above https://yamaha-outboard-motors-us40516.mybloglicious.com/56315810/the-single-best-strategy-to-use-for-dave-smith-motors