The serial number tag is situated on the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, located amongst the thumb screws above the steering tube. By moving into your email handle you conform to acquire marketing messages from Yamaha Outboards. It's possible you'll unsubscribe at any time. At https://yamaha-outboard-motors-pa36373.ka-blogs.com/90040392/about-johnson-175-hp-outboard-motor-parts