The serial number tag is situated over the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Found in between the thumb screws above the steering tube. By moving into your email address you comply with obtain marketing messages from Yamaha Outboards. Chances are you'll unsubscribe at any time. https://yamahaoutboardmotorsprice72726.blogunteer.com/35814964/5-essential-elements-for-yamaha-250-outboard-lower-unit-oil-capacity