How to Change the Oil in a 2016 Yamaha TTR50: Complete Step-by-Step Guide

Shop parts for a 2016 Yamaha TTR50 Dirt Bike.

Regular oil changes are essential for the long-term health and performance of your 2016 Yamaha TTR50. This guide, proprietary to MotoSport.com, walks you through every step, tools needed, and model-specific tips to ensure you get the job done right and safely every time.

Tools and Supplies Needed

  • 10W-40 motorcycle oil, Yamaha Yamalube recommended (quantity: 800 ml, or about 0.85 quarts; do not overfill).
  • Oil drain pan/tray
  • 17mm socket and ratchet OR 12mm socket (some years/variants use different drain bolt sizes, always check yours)
  • Torque wrench (to torque drain bolt to 15 lb-ft, or about 20 Nm)
  • Funnel (for spill-free pouring)
  • Clean rags/paper towels
  • New crush washer (optional but recommended)
  • Nitrile gloves (optional, keeps hands clean)

Before You Start: Model-Specific Callouts

  • The 2016 Yamaha TTR50 uses a simple wet sump system; there is no external oil filter to replace.
  • Drain plug location:– Bottom of the engine, typically on the left side. Use caution not to strip threads by overtightening.
  • Oil capacity:– 800 ml (or 0.85 quarts). Overfilling can cause excess oil to enter the air filter and create running issues .
  • Always use motorcycle-specific oil WITHOUT friction modifiers. Automotive oils, especially those marked “energy conserving,” can cause clutch slippage .
  • The engine oil is shared with the clutch—use only oils suitable for wet clutch systems .

Step-by-Step Instructions

1. Warm Up the Engine

  • Start the bike and let it idle for 2–3 minutes. This helps the oil flow more easily and allows contaminants to suspend in the oil for removal .
  • Shut off the engine and place the bike on a level surface, securely upright (use a stand if available).

2. Drain the Old Oil

  • Locate the oil drain plug beneath the engine, usually a 12mm or 17mm bolt .
  • Place the drain pan underneath.
  • Using a socket and ratchet, slowly loosen and remove the plug. Be cautious—the oil and engine parts may be hot .
  • Allow all oil to drain completely. Give it several minutes for best results.
  • Inspect the crush washer on the drain plug; replace it if it appears flattened or damaged .

3. Reinstall the Drain Plug

  • Wipe any debris from the plug and its sealing surface.
  • Install a new crush washer (if replacing).
  • Thread the plug in by hand to avoid cross-threading.
  • Tighten with a torque wrench to 15 lb-ft (20 Nm) . Do not overtighten; these threads are easy to strip.

4. Add New Oil

  • Locate and remove the oil fill cap/dipstick on the right side of the engine.
  • Clean around the opening to prevent dirt entering the engine .
  • Insert a funnel and slowly pour in 750–800 ml (0.80–0.85 quarts) of 10W-40 motorcycle oil.
  • Start with less (about 750 ml), then check the oil level before topping off.

5. Check Oil Level

  • Insert the dipstick, do NOT screw it in, just seat it. Remove and check level—it should be between the lower and upper marks .
  • If needed, add oil in small increments until you are just below the upper mark.
  • Replace the dipstick/cap and wipe away any spills.

6. Final Checks

  • Start the engine and let it idle for 30 seconds. Shut it off and wait a minute.
  • Check for leaks at the drain plug or fill cap.
  • Recheck the oil level. Add more oil only if necessary.
  • Dispose of old oil properly at a recycling center or auto parts store.

Additional Tips for the 2016 Yamaha TTR50

  • Oil overfill is common. More than 800 ml can flood the air filter and cause poor running .
  • Change the oil every 10 hours of riding or every few months if not ridden often .
  • There is no separate oil filter—just drain and refill.
  • Avoid overtightening all bolts—Yamaha engines use soft aluminum threads.

In Summary

  • Use only motorcycle-specific 10W-40 oil for wet clutch compatibility.
  • 800 ml is the right capacity—double check with the dipstick to avoid overfilling.
  • Always torque the drain plug to 15 lb-ft (20 Nm).
  • Cleanliness is key—keep dirt out of the fill and dipstick holes.

Proper oil maintenance is the foundation for engine longevity and reliability in your 2016 Yamaha TTR50. For genuine Yamaha parts, premium oil, and all your dirt bike needs, trust MotoSport.com—your source for everything dirt and motocross.

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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.