How to Change the Oil in a 2016 Honda CRF150R

Shop parts for a 2016 Honda CRF150R Dirt Bike.

Regular oil changes are crucial for keeping your 2016 Honda CRF150R running smoothly and prolonging engine life. In this proprietary MotoSport.com guide, you’ll find a detailed step-by-step process, tools required, and specific model call-outs to ensure a successful oil change on your dirt bike.

Tools and Materials Needed

  • Socket wrench set (with 10mm and 12mm sockets)
  • Oil drain pan
  • Funnel
  • Clean rags or paper towels
  • New engine oil (Honda recommends 10W-40, API SH or SJ or higher)
  • New oil filter (as needed for full service)
  • New sealing washer (for drain plug, highly recommended to prevent leaks)
  • Torque wrench (optional, for precise reinstallation)
  • Gloves (to keep hands clean and protected)

Preparation and Specific Call-Outs for the 2016 CRF150R

  • Honda’s CRF150R features separate engine and transmission oil compartments. Do not confuse the two – both require regular servicing, but they use different drain bolts. Never mix or use incorrect oil for each side as this can cause severe engine damage and transmission malfunction.
  • Always check your owner’s manual for the recommended oil quantity and specifications.
  • Make sure the motorcycle is on a level surface and the engine is warm (not hot). This helps oil flow out more efficiently and removes more contaminants.
  • Prepare to replace the O-ring or sealing washer on the drain bolt; a worn or pinched O-ring can cause leaks, especially in this bike.

Step-by-Step Oil Change Instructions

  1. Warm Up the Engine
    • Start the bike and let it idle for about 3-5 minutes to warm the oil.
    • Turn off the engine, place the bike on a stand, and ensure it's stable.
  2. Locate the Engine Oil Drain Plug
    • The engine oil drain plug is under the right side of the crankcase. Be careful not to confuse it with the transmission drain bolt on the opposite side.
    • Clean the area around the drain plug to prevent debris from contaminating the oil.
  3. Drain the Old Engine Oil
    • Place your drain pan under the engine oil drain plug.
    • Using a socket wrench, carefully loosen and remove the drain bolt. Allow the oil to fully drain into the pan.
    • If you're replacing the oil filter, remove the filter cover bolts and carefully extract the old filter and O-ring.
  4. Inspect and Replace the Sealing Washer and Oil Filter
    • Inspect the drain bolt’s washer or O-ring for damage. Replace it if necessary (failure to do so can result in leaks, and this is a common issue for this model).
    • If changing the oil filter, install a new filter in the correct orientation and don’t pinch the O-ring — this can easily happen and cause future leaks.
  5. Reinstall the Drain Plug
    • Reinstall and hand-tighten the oil drain plug with a new sealing washer.
    • Use a torque wrench to tighten it to factory specification if possible (refer to your owner’s manual for torque values).
  6. Add New Engine Oil
    • Remove the dipstick/oil fill cap located above the right side of the engine.
    • Insert a funnel and slowly pour in the new engine oil (typically about 0.7L or as specified in your owner’s manual).
    • Pro tip: Hold the funnel slightly above the fill opening; don’t jam it in or oil may spill over instead of flowing smoothly.
  7. Check Oil Level
    • Reinstall the dipstick/oil cap and tighten securely.
    • Start the engine and let it idle in neutral for a minute. Shut off and let oil settle for another minute.
    • Remove the dipstick and check the oil level. Top up if needed, ensuring not to overfill.
  8. Dispose of Old Oil Properly
    • Pour used oil into a sealed container and take it to a recycling facility or your local MotoSport.com dealer for eco-friendly disposal.
  9. General Inspection
    • Wipe down any oil spills, check for leaks around the drain plug and filter cover.
    • Ensure proper oil level again after your first short ride. Add oil if needed.

Frequently Asked Questions and Model-Specific Tips

  • The 2016 CRF150R has separate engine and transmission oil systems; never mix them. The engine side drain is on the right, transmission on the left.
  • If the O-ring is pinched during filter installation, leaks will occur — always inspect carefully.
  • Honda recommends changing the oil filter every other oil change or if the oil looks especially dirty.
  • Always use a high-quality motorcycle oil meeting Honda’s recommendations for best performance and protection.
  • If you aren’t confident or are missing tools for the job, consult your local MotoSport.com service department for assistance, as incorrect installation can cause long-term issues.

Maintaining your Honda CRF150R with regular oil changes ensures high performance and reliability—both on the track and off. For premium oils, genuine filters, and all service parts, trust MotoSport.com to keep you moving forward.

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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.