How to Change the Oil on a 2023 Honda CRF150R Big Wheel
Shop parts for a 2023 Honda CRF150R Big Wheel Dirt Bike.
Changing the oil on your 2023 Honda CRF150R Big Wheel is a critical part of routine maintenance, ensuring optimal performance and engine longevity. This guide is produced exclusively for MotoSport.com and is tailored for this year and model, incorporating all the specific information and best practices you need to succeed, even if it's your first time.
Tools and Supplies Needed
- 10mm and 12mm socket or wrench (for drain bolts)
- Oil drain pan
- Clean rags or shop towels
- Measuring cup for oil (marked in milliliters/cc)
- Torque wrench (recommended for reinstalling drain bolts)
- New oil filter
- New O-ring for oil filter cover
- New crush washers for drain bolts
- Honda recommended oil:– SAE 10W-40 (GN4 or equivalent, NON-energy conserving for motorcycles)
- Safety gloves
Oil Specifications and Quantities
- Engine side:– 590cc (when changing oil and filter), 560cc (oil only, no filter)
- Clutch/Transmission side:– 580cc
- Oil type:– Honda GN4 10W-40 or equivalent motorcycle engine oil
Step-by-Step Instructions
-
Warm Up the Engine
- Run the bike for 3-5 minutes to warm the oil. Warm oil drains faster and removes more contaminants.
- Turn the engine off and let the bike cool for 5 minutes to avoid burns.
-
Place the Bike Securely
- Set the motorcycle upright on a stand or firm, level surface.
-
Remove the Skid Plate (if equipped)
- Remove any skid plate or engine guard that may block access to the drain bolts.
-
Locate the Drain Bolts
- The CRF150R Big Wheel uses a split engine design with separate compartments for engine oil (right/crankcase) and clutch/transmission oil (left). Each has its own drain bolt.
- The engine oil drain bolt is on the right side. The clutch/transmission drain bolt is on the left.
-
Drain the Engine Oil
- Place the drain pan under the engine oil drain bolt and remove the bolt with a 12mm socket. Be prepared for rapid oil flow.
- Let the oil drain completely.
- Inspect and replace the crush washer on the drain bolt.
-
Drain the Clutch/Transmission Oil
- Move the pan and remove the clutch/transmission oil drain bolt on the opposite side using a 10mm or 12mm socket. Drain fully.
- Replace the crush washer on this bolt as well.
-
Change the Oil Filter
- Use a socket to remove the oil filter cover bolts (typically 8mm or 10mm).
- Remove the cover, old oil filter, and O-ring.
- Clean the cover and sealing surface.
- Install the new oil filter (ensure it's facing the correct direction as per manual) and new O-ring.
- Reinstall the cover and bolts, tightening evenly and to manufacturer torque specifications.
-
Reinstall Drain Bolts
- Once drainage stops, reinstall both drain bolts with new crush washers. Hand-tighten, then torque to manufacturer specifications (do not overtighten to avoid stripping).
-
Add Fresh Oil
- Remove the engine oil fill plug on the right side and pour in 590cc if you changed the filter (560cc if not). Replace the oil fill cap.
- Move to the left side, remove the clutch/transmission oil fill plug, and add 580cc of oil. Replace the cap.
- Double-check you are using the correct compartment for each oil filling step.
-
Start the Bike and Check for Leaks
- Start the engine and let it idle for a few minutes.
- Turn off the bike and allow it to sit for two minutes so the oil can settle back into the sump.
- Check oil levels with the dipsticks provided, and check both sides for leaks at the plugs and filter cover.
- Top off oil as needed to reach correct level.
-
Clean Up
- Dispose of old oil and the filter at a recycling or auto parts center. Clean used parts and store your tools.
Model-Specific Tips & Callouts
- Always use the recommended oil type and quantity for the CRF150R Big Wheel.
- Be gentle with the drain bolts to avoid stripping threads in the aluminum crankcases.
- The 2023 model retains the separate oil compartments of earlier generations. Never swap the location of oils or use automotive oils, which can harm the wet clutch and transmission.
- If you skip changing the filter, lower the engine side refill to 560cc as stated in the manual.
- Always use fresh crush washers to prevent future leaks.
- Check your owner's manual for torque settings on drain bolts and filter cover (consult your dealer or official Honda service resources if unsure).
When to Change Your Oil
- Change oil every 5-10 hours of run time for hard riders, or at minimum follow Honda's schedule for your usage type.
Final Recommendations
- Only use oils specifically intended for motorcycles. Automotive oils can cause clutch slippage and premature wear.
- If the drain bolts or filter cover show signs of damage or wear, replace them immediately.
- After refilling, always double-check both sides for proper oil level and leaks.
Regular oil changes are the single best thing you can do to keep your 2023 Honda CRF150R Big Wheel running strong for years. Follow this Motocross.com exclusive guide, and you'll master this essential task every time.
Related Shopping Categories
Shop Motor Oil for a 2023 Honda CRF150R Big Wheel Dirt Bike.
Shop Oil Filters for a 2023 Honda CRF150R Big Wheel Dirt Bike.
Shop Oil Drain Pans for a 2023 Honda CRF150R Big Wheel Dirt Bike.
Shop Tools for a 2023 Honda CRF150R Big Wheel Dirt Bike.
Shop Oil Fillers and Drain Plugs for a 2023 Honda CRF150R Big Wheel 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.