Here's why:
* Engine-Specific: Fuel mixture ratios vary significantly depending on the model and year of the engine.
* Safety and Warranty: Using the incorrect fuel mixture can severely damage your engine and void your warranty.
Where to find the correct information:
1. Owner's Manual: The most reliable source is your Yamaha 40 hp outboard engine's owner's manual. It will clearly state the recommended fuel mixture.
2. Yamaha Website: You can find manuals and other resources on the Yamaha Outboards website. Search for your specific engine model.
3. Yamaha Dealer: Contact your local Yamaha dealer. They can provide you with the correct fuel mixture information.
General Information (for reference only, do not use this information without confirming with your owner's manual):
* 2-stroke engines typically use a mix of gasoline and 2-stroke oil.
* Common ratios range from 50:1 to 100:1 (gasoline to oil).
Important: Always use the recommended fuel mixture for your engine. Using the wrong mixture can lead to:
* Premature engine wear: Too much oil can cause carbon buildup and fouling.
* Engine damage: Too little oil can lead to severe engine damage from lack of lubrication.
Please be sure to consult your engine's documentation or a Yamaha dealer to obtain the correct fuel mixture ratio for your Yamaha 40 hp 2-stroke outboard engine.
