How to change the oil in a 2025 Yamaha TTR110 Dirt Bike

How to Change the Oil in a 2025 Yamaha TTR110: Step-By-Step Guide

Shop parts for a 2025 Yamaha TTR110 Dirt Bike.

Changing the oil on your 2025 Yamaha TTR110 is one of the most important maintenance tasks to ensure optimal performance and the longest life for your dirt bike. Luckily, Yamaha kept things simple on this model, making routine oil changes straightforward—even for beginners. This detailed, original guide is proprietary to MotoSport.com and covers all the tools required, the specific step-by-step procedure, and key tips every TTR110 owner must know. Let–s get started.

Tools & Supplies Needed

• 12mm socket and ratchet–for removing the drain bolt
• Drain pan or oil catch can
• Small funnel
• Rags or shop towels
• Measuring cup or quart bottle with measurements
• New oil (Yamalube or equivalent 10W-40 motorcycle oil recommended)
• Gloves (optional, keeps your hands clean)

Model-Specific Call-Outs for 2025 Yamaha TTR110

• No oil filter: The TTR110 does not use a replaceable oil filter; only the oil is changed. This streamlines the process compared to other bikes.
• Oil capacity: Fill with approx 28 fluid ounces (0.87 quarts/820ml) of 10W-40 oil. Carefully measure for best results and avoid overfilling.
• Consistent procedure: The oil change process remains similar for all TTR110 models from recent years, including 2025, as the engine design hasn–t meaningfully changed.
• Check for leaks: Always inspect the drain bolt rubber gasket for cracking or wear. Replace if necessary to avoid leaks.

Preparation Steps

• Ride or idle the engine for 5-10 minutes to warm up the oil. Warm oil drains faster and removes more internal contaminants.
• Set the bike upright on a level surface. An off-kilter bike can mean inaccurate draining and filling.
• Gather all necessary tools and materials so you don–t need to leave the workspace mid-process.

Step-by-Step: Changing the Oil

• 1. Remove the dipstick:
  With the bike upright, unscrew and remove the oil dipstick/fill cap. Set it aside on a clean rag.
• 2. Place the drain pan:
  Position your oil catch pan beneath the drain bolt, which is located on the left side, under the engine casing.
• 3. Remove the drain bolt:
  Use your 12mm socket and ratchet to loosen and remove the drain bolt. Be careful as hot oil may flow quickly.
• 4. Allow oil to fully drain:
  Let the oil completely drain out. It may help to gently tip or rock the bike upright for a final drain.
• 5. Inspect and reinstall drain bolt:
  Wipe the drain bolt clean and inspect the rubber gasket (replace if worn). Reinstall the bolt and torque it snugly–do not overtighten.
• 6. Add new oil:
  Insert the funnel into the fill hole. Slowly pour in 28 fluid ounces (0.87 quarts/820ml) of 10W-40 oil. Using Yamaha–s Yamalube is recommended for best compatibility.
• 7. Double-check the oil level:
  Insert, but do not thread, the dipstick into place. Remove and confirm the oil is between the low and high markers. If needed, add a small amount at a time–do not overfill. Too much oil can cause blowby, engine leaks, or airbox contamination.
• 8. Final touches:
  Reinstall the dipstick/fill cap and wipe any spilled oil from the case.
• 9. Idle and final check:
  Start the engine and let it idle for a minute. Shut down and wait a few minutes to let oil settle, then recheck the level, topping off if needed.

Clean Up and Disposal

• Dispose of your used oil responsibly. Most auto parts stores, motorcycle dealers, or recycling facilities accept used motor oil. Never dump oil on the ground or in the trash.
• Wipe up your tools, drip pan, and workspace thoroughly. This is the standard best practice followed by Yamaha-certified techs.

Model-Specific Tips for the 2025 Yamaha TTR110

• There is no replaceable oil filter–just engine oil and an internal oil screen that may be checked but does not require regular replacement.
• Oil level accuracy is crucial: Overfilling or running low on oil can adversely affect engine performance and longevity. Use the dipstick process outlined above after the bike has idled and settled.
• The TTR110 engine design has remained unchanged for over a decade; this guide is accurate for all 2025 TTR110 bikes and is applicable to recent prior model years.
• Use only high-quality 10W-40 four-stroke oil designed for motorcycle wet clutches to ensure best performance; avoid cheap automotive oils.

Conclusion

With basic hand tools and care, changing the oil on your 2025 Yamaha TTR110 is fast and easy, keeping your dirt bike running strong for years. Do this maintenance at the interval recommended in your owner–s manual (usually every 10-15 hours of ride time or every few months, whichever comes first). Always measure, check, and properly dispose of engine oil for best results–and get back out to ride with confidence, courtesy of MotoSport.com.

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Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.