Here's why:
* Serial numbers are not standardized for engine information: Serial numbers typically identify the specific bike model, year, and possibly other details. They don't necessarily contain engine data.
* Engine information is model-specific: To find the engine type, you need to know the specific model and year of your dirt bike.
Here's how you can find the engine information:
1. Check your bike's VIN: The VIN (Vehicle Identification Number) is usually located on the frame, near the steering head, or on a sticker under the seat.
2. Look up your bike online: Once you have the VIN or model information, you can search for it on the Yamaha website or on motorcycle forums like ADVrider or ThumperTalk. These resources often have databases with detailed information about specific Yamaha bikes.
3. Contact Yamaha: If you cannot find the information online, you can contact Yamaha customer service. They can help you identify the engine type based on your bike's serial number or VIN.
Remember: Providing accurate information about your bike is crucial for getting the right information. Be sure to include all relevant details, including the model, year, and any other identifying information.