* The exact fuel mix is usually specified in the owner's manual: Every motorcycle manufacturer provides specific fuel mix instructions for their models. The 1993 YZ125 manual will have the recommended fuel/oil ratio.
* Mix ratios can vary based on factors like engine condition and climate: While a general guideline exists, your specific bike might need adjustments based on things like engine wear, riding conditions, and the oil you're using.
Here's what you should do:
1. Find the owner's manual: This is the most reliable source for the correct fuel mixture. You can often find digital copies online if you don't have the physical manual.
2. Check the oil bottle: Some oil bottles come with recommendations for various models.
3. Consult a reputable motorcycle repair shop or Yamaha dealer: They can provide accurate information based on your specific model and current conditions.
General information:
* Two-stroke engines typically use pre-mixed fuel: You'll mix gasoline with two-stroke engine oil before putting it in the tank.
* The typical fuel mix for two-strokes is between 32:1 and 40:1: This means 32 parts gasoline to 1 part oil, or 40 parts gasoline to 1 part oil.
Important Note: Using the wrong fuel mix can seriously damage your engine. Always follow the manufacturer's recommendations!
