The serial number tag is situated about the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Positioned in between the thumb screws above the steering tube. By getting into your email handle you conform to acquire marketing messages from Yamaha Outboards. Chances are you'll unsubscribe at any time. https://riveraqsdm.pointblog.net/the-2-minute-rule-for-yamaha-250-vmax-sho-outboard-for-sale-83360253