How to Change the Oil in a 2021 Yamaha TTR110: MotoSport.com Proprietary Guide
Shop parts for a 2021 Yamaha TTR110 Dirt Bike.
Regular oil changes are crucial to maximize the lifespan and performance of your 2021 Yamaha TTR110. This guide walks you step-by-step through the process and highlights some model-specific notes every owner should know before getting started.
Tools & Supplies Needed
- 10mm or 12mm wrench/ratchet (typically 12mm for the TTR110 drain bolt)
- Clean funnel
- Oil drain pan or oil catch can
- Rag or paper towels
- Gloves (optional, but recommended to keep your hands clean)
- Oil: 10W-40 motorcycle-specific engine oil (Yamalube 10W-40 is recommended)
- New crush washer (optional, if needed for drain bolt seal)
Model-Specific Call-Outs for the 2021 Yamaha TTR110
- Oil capacity is 0.85 quarts (27 fluid ounces). Do not overfill. The engine also lubricates the clutch, so always use oil rated for motorcycles and NEVER use automotive oil with friction-reducing additives to avoid clutch slippage.
- No oil filter on the TTR110, so this is a simple drain-and-fill process without filter replacement.
- Change intervals vary based on riding conditions and aggressiveness. For recreational use, every 7–10 hours is common; for racing or heavy riding, consider every 5 hours or sooner.
- Be sure to check the filler cap O-ring for wear or damage and replace if necessary during each change.
Step-by-Step Oil Change Process
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Warm Up the Engine
- Start the TTR110 and let it idle for 5–10 minutes. This thins the oil, allowing it to drain more completely.
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Prepare Your Workspace
- Place your drain pan under the engine.
- Put the bike upright, not on its side stand, to ensure proper draining.
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Remove the Oil Filler Cap
- Twist off the oil filler cap located on the right crankcase. This prevents vacuums and allows oil to drain smoothly.
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Remove the Drain Bolt
- Locate the drain bolt on the bottom left of the engine case.
- Use your 12mm wrench or ratchet to loosen and remove the bolt. Allow oil to drain fully (several minutes).
- Inspect the crush washer and replace if damaged or worn for a leak-free seal.
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Clean Bolt & Area
- Wipe off the drain bolt and the area around the hole to remove debris and old oil residue.
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Reinstall the Drain Bolt
- Thread the bolt in by hand first, then snug down with your wrench (do not over-tighten; typically around 14 ft-lb torque if you have a wrench).
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Add New Oil
- Place the funnel in the oil fill hole.
- Pour in 0.85 quarts (27 oz) of 10W-40 motorcycle oil. Yamalube bottles have measurement marks for accuracy.
- Pour slowly, using the slant side of the bottle down for a smoother pour and less spilling.
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Replace the Filler Cap
- Check the O-ring for damage. Replace if needed.
- Install the cap and hand-tighten—do not use a tool.
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Check Oil Level
- With the bike upright, insert the dipstick but don't thread it in. Remove and verify oil is within the safe level markers. Top off if necessary.
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Clean Up & Dispose Used Oil Properly
- Wipe away any spilt oil from the crankcase area.
- Use a brake/contact cleaner if needed and towels for a spotless finish.
- Take the used oil to a local bike shop or an oil recycling facility.
Additional Pro Tips
- If you ride in dusty or dirty conditions, inspect and clean your air filter at the same interval as oil changes.
- Record your maintenance dates and engine hours with an hour meter, if equipped. This makes keeping up with routine service much easier.
- If you see contaminated or metallic oil during draining, consult a professional mechanic as this may signal engine wear.
By performing regular oil changes using the recommended process and products, your 2021 Yamaha TTR110 will remain reliable and ready for any ride. For OEM oils and supplies, visit MotoSport.com for trusted, model-specific parts and expert support every time.
Related Shopping Categories
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Shop Oil Fillers and Drain Plugs for a 2021 Yamaha TTR110 Dirt Bike.
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.