Yamaha motorcycle engine numbers are a unique identifier for each engine. They are typically located on the crankcase or under the seat of the motorcycle. The engine number consists of 17 characters arranged in a specific format.
The first three characters of the engine number indicate the model year of the motorcycle. The fourth character represents the country or region where the motorcycle was manufactured. The fifth character indicates the type of engine, such as a four-stroke or two-stroke engine. The sixth and seventh characters indicate the displacement of the engine in cubic centimeters. The eighth character represents the number of cylinders, and the ninth character represents the type of fuel used by the engine. The tenth to seventeenth characters are the serial number of the engine.
Here is a breakdown of the engine number format:
* First three characters: Model year
* Fourth character: Country or region of manufacture
* Fifth character: Engine type
* Sixth and seventh characters: Displacement in cubic centimeters
* Eighth character: Number of cylinders
* Ninth character: Fuel type
* Tenth to seventeenth characters: Serial number
Example
The engine number 1J4-012345678901234 is for a 2014 Yamaha motorcycle that was manufactured in Japan. The engine is a four-stroke, 125cc, single-cylinder engine that uses gasoline. The serial number of the engine is 012345678901234.
