How to Change the Oil in a 2014 GAS GAS TXT PRO 250
Shop parts for a 2014 GAS GAS TXT PRO 250 Dirt Bike.
Changing the oil in your 2014 GAS GAS TXT PRO 250 is an essential maintenance procedure to ensure the bike’s longevity and optimal performance. This step-by-step MotoSport.com guide breaks down the process, highlights the necessary tools, and calls out specific tips for this make and model.
Tools & Supplies Needed
- Transmission oil (Recommended: 370cc high-quality gear oil; for example, NILS Clutch Trial oil is often recommended)
- Drain pan (to catch used oil)
- 8mm or 13mm spanner/socket wrench (confirm exact size by inspecting your drain and fill bolts)
- Funnel (to prevent spills when adding new oil)
- Clean rags (for wipe-down and any minor spills)
- Replacement crush washer (recommended when removing the drain plug)
- Gloves (optional, but recommended for cleaner hands)
Step-by-Step Instructions
-
Warm Up the Bike
Start and run your GAS GAS TXT PRO 250 for 2–3 minutes. This helps oil flow out more completely when drained. -
Stabilize and Prepare
Place the bike upright on a stand that allows access to the drain plug. Avoid using a center stand that blocks the drain bolt; some stands may obstruct access to the plug, so verify clearance first. Bike must be stable to avoid spills or injury while working. -
Remove the Fill Cap
Unscrew the oil fill cap located on top of the gearbox; this allows oil to drain smoothly and faster due to air flow. -
Locate and Remove Drain Plug
The drain plug is typically at the bottom of the gearbox casing. Use the correct-size spanner (often 8 or 13mm; confirm by looking at your model) and turn counterclockwise to remove. Allow all oil to drain into your pan.
Tip: Inspect the old oil for metal shavings and ensure the drain plug’s washer is not damaged—replace the washer if it looks compromised to prevent future leaks. -
Inspect, Clean, and Reinstall the Plug
Wipe around the drain area and check that the surface is clean. Clean the drain plug itself. Install the new crush washer if you have one.
Tighten the drain plug securely but do not overtighten, as this can strip the threads—just snug enough to prevent leaks. -
Fill with New Oil
Using a funnel, add 370cc of the recommended transmission oil for your TXT PRO 250. Pour slowly to avoid overflow.
Note: Do not overfill, as overfilling can cause clutch drag or poor gear changes. If unsure, double-check your level once the bike is upright and after running for a minute. Add more only if necessary. -
Check the Oil Level
Start and idle the bike for 1–2 minutes. Shut off and let the oil settle. Verify the level, topping up if needed. Final levels should align with the inspection window or specified sight location for the TXT PRO 250. -
Cleanup and Final Inspection
Wipe down spills. Dispose of old oil properly at a recycling facility. Double-check for leaks and confirm everything is tight before riding again.
Model-Specific Call-Outs for 2014 GAS GAS TXT PRO 250
- Transmission Oil Amount: 370cc is the recommended capacity—using less or more can cause performance issues.
- Type of Oil: Use a quality gear oil; many owners favor specialist transmission/gear oils as the bike utilizes a wet clutch. Options like NILS Clutch Trial gear oil have a strong following for GAS GAS trial models.
- Drain Plug Care: The threads for the drain bolt are known to strip easily if overtightened on the TXT series; be cautious when tightening.
- Stands: If using a stand, ensure it does not obstruct the drain plug area. Trials bikes often have unique frame layouts that conventional stands may block.
- Frequency: Trials bikes may run transmission oil longer than typical motocross bikes, but regular changes (every 10–20 hours of riding, or more frequently in very dirty or wet conditions) are recommended for best clutch feel and gearbox life.
Additional Tips
- Do not use automotive engine oil; only use motorcycle-specific gear oils suitable for wet clutches.
- If the drain plug is stuck, avoid using excessive force—use penetrating oil or the correct tool to avoid damage.
- Always check for leaks after the first ride post-change to avoid unnoticed drips.
Keeping your 2014 GAS GAS TXT PRO 250’s oil fresh is crucial for top riding performance. For all your dirt bike parts and maintenance needs, trust MotoSport.com to deliver expert resources and quality gear for every ride.
Related Shopping Categories
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Shop Tools for a 2014 GAS GAS TXT PRO 250 Dirt Bike.
Shop Oil Fillers and Drain Plugs for a 2014 GAS GAS TXT PRO 250 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.