How to Change the Oil in a 2024 GAS GAS EX 450F
Shop parts for a 2024 GAS GAS EX 450F Dirt Bike.
Regular oil changes are critical to keeping your 2024 GAS GAS EX 450F running at peak performance. This guide, exclusive to MotoSport.com, walks you step-by-step through the oil change process, outlining every tool you'll need and pointing out key model-specific details for GAS GAS's flagship four-stroke dirt bike.
Tools and Supplies Needed
- 1.2 liters of Motorex Cross Power 4T 10W/50 full synthetic oil (or equivalent high-quality 10W/50 motorcycle oil)
- OEM oil filter
- Crush washer for the drain bolt
- 10mm and 13mm sockets/T-handles
- 5mm Allen wrench
- Snap ring pliers (for oil filter cover if necessary)
- Pliers
- Drain pan
- Measuring cup
- Contact cleaner or brake cleaner
- Shop rags
- Rubber gloves and safety glasses
- Funnel (optional but helpful)
Steps for Changing the Oil
- Warm Up the Engine
Start the bike and let it idle for 2–3 minutes to warm the oil. This helps the oil drain more completely.
Never attempt maintenance with the engine running or when hot to the touch. - Turn Off Ignition
Make sure the ignition is off and the motorcycle is stable on a stand.
For all EX 450F models, the motor must be completely shut down before you proceed.
Call-out: The 2024 EX 450F uses a transponder key/ignition lock—double-check that everything is off before disassembly.
- Remove Skid Plate (If Equipped)
If your EX 450F is equipped with a skid plate, remove it using the appropriate socket or Allen wrench to access the drain bolts.
- Clean Around Drain Plugs
Wipe dirt or debris away from the drain areas to prevent contaminants from entering your engine when bolts are removed.
- Remove Drain Plugs and Oil Screens
The 2024 EX 450F has multiple drain points:- Main drain bolt (underside of the engine, usually 13mm)
- Oil screen cover (remove using a 10mm socket or 5mm Allen, depending on the bolt style)
Call-out: There may also be two oil screens—carefully remove and clean them with contact cleaner and blot dry.
- Replace the Oil Filter
Use snap ring pliers if necessary to remove the oil filter cover. Pull out the old filter, noting its orientation, and slide a new OEM filter into place.
Lightly oil the rubber gasket on the new filter before installation.
- Inspect and Replace Crush Washer
Always replace the drain bolt's crush washer with a new OEM washer to ensure a tight, leak-free seal.
- Clean and Reinstall Drain Bolts and Screen Covers
Clean the removed bolts and screens, then reinstall. Tighten to manufacturer's recommended torque.
Call-out: Always use new sealing rings or washers and apply thread locker as specified in the OEM manual. Never reuse O-rings or self-locking fasteners. - Add New Engine Oil
Use a funnel to pour in 1.2 liters of 10W/50 full synthetic motorcycle oil.
Call-out: For the 2024 GAS GAS EX 450F, do not overfill; this can cause excessive crankcase pressure and leaks. Let the bike settle for a couple of minutes, then check the oil sight glass or dipstick as specified in your owner's manual.
If the level is below the recommended mark after running the motor gently for 30 seconds, top off incrementally up to the full mark. - Check for Leaks and Clean Up
Reinstall the skid plate if removed. Clean any oil residue with a rag and contact cleaner. Start the engine and let it idle while watching the drain and filter areas for leaks. Shut down the engine and recheck the oil level.
Dispose of old oil and filter responsibly by bringing them to an authorized recycling center.
Model-Specific Call-Outs for 2024 GAS GAS EX 450F
- Drain Plug Locations: The EX 450F has both a main crankcase drain bolt and an oil screen cover on the engine's right side. Both need to be removed for a thorough oil change.
- Oil Volume: 1.2 liters is correct for a full oil and filter change on the 2024 model. Do not use more or less—both overfilling and underfilling can harm the engine or transmission.
- Oil Filter Orientation: Always note the direction of the oil filter when removing; the new filter must go in the same way.
- OEM Parts: Use only OEM filters and crush washers for optimal fit and sealing.
Aftermarket or reused parts can risk oil leaks or poor filtration. - Thread Locker Use: Some drain bolts may require a light thread locker as per manufacturer recommendation for the 2024 EX 450F—check your owner's manual for specifics.
- Cleaning Oil Screens: These screens capture debris—inspect carefully for any metal shavings, which may indicate excessive engine wear. Clean thoroughly and note any unusual findings.
- Safety: The ignition must always be fully off for all maintenance tasks. For 2024 models with transponder key systems, double-check the bike is off and immobilized before starting work.
Conclusion
Changing the oil in your 2024 GAS GAS EX 450F is straightforward with the right tools and attention to detail. Always use recommended supplies, double-check all fasteners, and keep your workspace clean. Look for the MotoSport.com guarantee on all OEM parts for fit, finish, and long-lasting performance every time you tackle routine maintenance. Happy riding.
Related Shopping Categories
Shop Motor Oil for a 2024 GAS GAS EX 450F Dirt Bike.
Shop Oil Filters for a 2024 GAS GAS EX 450F Dirt Bike.
Shop Oil Drain Pans for a 2024 GAS GAS EX 450F Dirt Bike.
Shop Tools for a 2024 GAS GAS EX 450F Dirt Bike.
Shop Oil Fillers and Drain Plugs for a 2024 GAS GAS EX 450F 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.