Suzuki Model Number Location The model (and serial) number tag is found on the best outside edge from the CLAMP BRACKET. If the engine is more recent than 2011 you will use the engine serial number as an alternative to the model number. Yamaha has dedicated to achieving carbon neutrality https://outboard-yamaha-motors-fo05673.blogdigy.com/5-essential-elements-for-yamaha-250-outboard-lower-unit-oil-capacity-56407822