Highlights
- Among the essential maintenance tasks, changing the gear oil plays a vital role in ensuring smooth shifting and protecting the transmission components.
- Position the motorcycle on a level surface and locate the drain plug at the bottom of the crankcase.
- Stop the engine and check the gear oil level through the sight glass on the side of the crankcase.
Maintaining your Yamaha YZ250 is crucial for optimal performance and longevity. Among the essential maintenance tasks, changing the gear oil plays a vital role in ensuring smooth shifting and protecting the transmission components. This comprehensive guide will walk you through the step-by-step process of changing gear oil in your YZ250, empowering you to perform this maintenance task with confidence.
Tools and Materials Required
Before embarking on this adventure, gather the necessary tools and materials:
- 17mm socket wrench
- 12mm socket wrench
- Drain pan
- Funnel
- New gear oil (recommended: Yamalube Gear Oil 80W)
- New crush washer for drain plug
Safety Precautions
- Allow the engine to cool down before starting the procedure.
- Wear appropriate safety gear, including gloves and safety glasses.
- Work in a well-ventilated area to avoid inhaling fumes.
Step 1: Locate the Drain Plug
Position the motorcycle on a level surface and locate the drain plug at the bottom of the crankcase. It is typically a 17mm bolt.
Step 2: Drain the Old Gear Oil
Place the drain pan under the drain plug and carefully loosen it using the 17mm socket wrench. Allow the old gear oil to drain completely into the pan.
Step 3: Replace the Drain Plug
Once the old gear oil has drained, clean the drain plug and apply a new crush washer. Tighten the drain plug back into the crankcase using the 17mm socket wrench.
Step 4: Find the Fill Plug
Locate the fill plug, usually a 12mm bolt, on the side of the crankcase.
Step 5: Add New Gear Oil
Using a funnel, pour the recommended amount of new gear oil into the fill hole. Refer to your YZ250 owner’s manual for the specific quantity required.
Step 6: Tighten the Fill Plug
Tighten the fill plug securely using the 12mm socket wrench. Wipe away any excess oil.
Step 7: Check the Gear Oil Level
Start the motorcycle and let it idle for a few minutes to circulate the new gear oil. Stop the engine and check the gear oil level through the sight glass on the side of the crankcase. The oil level should be between the “low” and “full” marks.
Tips for Success
- Use high-quality gear oil specifically designed for motorcycles.
- Change the gear oil regularly, as recommended in your owner’s manual.
- Inspect the old gear oil for any signs of metal shavings or discoloration, which may indicate transmission problems.
- If you encounter any difficulties during the process, consult a qualified mechanic.
Wrapping Up
Congratulations! You have successfully changed the gear oil in your Yamaha YZ250. This simple yet essential maintenance task will help ensure smooth shifting, reduce wear and tear, and extend the lifespan of your transmission. By following these steps, you can keep your YZ250 running at its best for years to come.
Popular Questions
Q: How often should I change the gear oil in my YZ250?
A: Refer to your YZ250 owner’s manual for the recommended change interval. Typically, it is every 5-10 riding hours.
Q: Can I use any type of gear oil in my YZ250?
A: No, use only motorcycle-specific gear oil designed for wet clutches. Yamalube Gear Oil 80W is highly recommended.
Q: What are the signs of low gear oil?
A: Hard shifting, slipping gears, and unusual noises from the transmission.