Here's how to find it:
1. Locate the engine: The engine is the large, metal component located on the right side of the scooter.
2. Look for a flat, rectangular area: Near the cylinder head, you'll find a flat, rectangular area on the engine casing.
3. Identify the engine number: The engine number will be stamped or embossed into this area. It may be a series of letters and numbers.
Note: The exact location of the engine number may vary slightly depending on the specific year and model of the Zuma. If you can't find it, consult your owner's manual or a Yamaha dealer for assistance.