Here's why:
* Engine Type: The fuel mixture varies significantly depending on the type of engine you have (2-stroke or 4-stroke).
* Model: Yamaha produced many different 175cc models in 1980. Each one might have different requirements.
To find the correct fuel mixture, you need to:
1. Identify your specific model: Look for model numbers or stickers on the engine or frame.
2. Consult the Owner's Manual: This will have the most accurate information about the recommended fuel mix for your specific engine.
3. Contact Yamaha: If you can't find your manual, contact Yamaha customer support with your model information.
General Fuel Mixture Information:
* 2-stroke engines: Typically use a mix of gasoline and 2-stroke oil. The ratio is usually specified as a percentage (e.g., 32:1 or 40:1). This means 32 parts gasoline to 1 part oil, or 40 parts gasoline to 1 part oil, respectively.
* 4-stroke engines: Do not require oil mixed with gasoline. They use a separate oil sump for lubrication.
Important Note: Always use a high-quality 2-stroke oil specifically designed for marine engines. Using the wrong type of oil can damage your engine.
Before running your engine, it is vital to find the correct fuel mixture. Using the wrong mix can cause serious damage to your engine.
