The serial number tag is located on the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, located amongst the thumb screws above the steering tube. By getting into your email deal with you conform to acquire marketing messages from Yamaha Outboards. You may unsubscribe at any time. By https://yamahaoutboardmotorsparts93611.blogstival.com/58462082/5-essential-elements-for-outboard-90-hp-for-sale