How to Change the Coolant in a 2021 GAS GAS TXT RACING 280
If you want your 2021 GAS GAS TXT RACING 280 to deliver consistent performance and protect the cooling system, fresh coolant is essential. This proprietary MotoSport guide covers everything you need to know about changing the coolant, with notes specific to the TXT RACING 280 so you ride with confidence.
What Makes the TXT RACING 280 Different?
The 2021 GAS GAS TXT RACING 280 is a competitive trials motorcycle renowned for its lightweight chassis, powerful 2-stroke engine, and compact layout. One unique point owners should note is the tight packaging of engine and cooling components–working space is limited, so patience and the right tools matter when servicing the cooling system.
Required Tools & Supplies
- Phillips and flathead screwdrivers
- 8mm or 10mm socket or wrench (check your hose clamps and radiator guard hardware)
- Drain pan
- Funnel
- Approved motorcycle coolant suitable for aluminum components
- Gloves and shop towels
Step-by-Step Coolant Change Procedure
- Preparation: Ensure the bike is cool to avoid burns. Set it upright on a stand in a well-ventilated space.
- Remove gas tank (if needed): On the TXT RACING 280, the radiator cap typically sits beneath the fuel tank. Unscrew the tank mount bolts, carefully disconnect the fuel line, and set the tank aside to access the radiator cap.
- Release system pressure: Slowly remove the radiator cap to release any pressure–never rush this step.
- Drain coolant: Locate the lowest hose at the water pump or the dedicated coolant drain bolt (usually on the pump cover). Place the drain pan underneath. Unscrew the hose clamp or drain bolt and allow all coolant to flow out.
- Flush (Recommended): To ensure a complete exchange, you can flush with distilled water. Reinstall the hose or drain bolt, fill with distilled water, run the bike briefly (not hot), then drain again.
- Inspect components: Check the condition of hoses and clamps. This is a good time to spot cracks, swelling, or leaks unique to older TXT RACING models.
- Refill with coolant: Tighten the hose or drain bolt. Using a funnel, slowly fill the radiator to the top with new coolant rated for aluminum systems. Always pour slowly to let air escape.
- Bleed air: With the radiator cap off, tilt and gently shake the bike to release trapped air bubbles. Reinstall the radiator cap.
- Reattach the gas tank: Secure the tank in place and reconnect the fuel line.
- Warm up and check: Start the engine, let it warm up, then allow to cool. Open the radiator cap and top off coolant to ensure the system is full.
- Dispose of old coolant properly: Never pour old coolant down the drain. Take it to a hazardous waste facility.
Key Notes for TXT RACING 280 Owners
- The radiator cap position under the gas tank is unique–set extra time for safe removal.
- Use only high-quality, aluminum-safe motorcycle coolant. Avoid mixing with tap water to prevent mineral buildup.
- The compact engine layout means working with caution around hoses and clamps prevents leaks.
- Regular checks prevent overheating and engine damage, especially in technical riding conditions.
Maintenance Tip
Consult your owner manual for recommended coolant change intervals. For aggressive trials riding, consider changing coolant seasonally for best performance.
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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.