Suzuki Model Number Location The model (and serial) number tag is found on the best outside edge on the CLAMP BRACKET. Should your engine is newer than 2011 you will use the engine serial number as opposed to the model number. This document consists of many of Yamaha's useful trademarks. https://yamaha-outboard-motors-fo67495.blazingblog.com/36841296/yamaha-250-outboard-top-seal-for-lower-unit-an-overview