How to Change the Coolant in a 2019 GAS GAS TXT RACING 280
Keeping your 2019 GAS GAS TXT RACING 280 running cool and reliable means maintaining the cooling system with regular coolant changes. This step-by-step guide ensures a safe, effective coolant change, highlighting specific notes for this model.
What Makes the 2019 GAS GAS TXT RACING 280 Unique?
- Engine: Liquid-cooled, single-cylinder 2-stroke engine (272.2 cc) with a radiator system designed for rigorous trials riding.
- Access: The radiator cap is positioned beneath the seat and fuel tank area, making access slightly tighter than on some motocross models.
- Coolant Spec: Use a high-quality, ethylene glycol-based coolant designed for aluminum engines to ensure full corrosion protection and optimal heat transfer.
- Capacity: The cooling system has moderate capacityfill slowly and check levels to avoid air pockets.
Before You Begin
- Work with a cold engine to prevent injury from hot coolant spray
- Have a drain pan, funnel, clean shop towels, and a new coolant that meets GAS GAS specifications
- Wear eye protection and gloves; coolant is toxic and slippery
Step-by-Step Coolant Change Guide
-
Allow the Engine to Cool Entirely
Never remove the radiator cap when the engine is hot or under pressure–wait until it's completely cool to the touch to avoid burns or coolant spray. -
Remove the Seat and Tank if Needed
On the TXT RACING 280, the radiator cap is often located beneath or near the fuel tank. Remove the seat and tank for easier access. -
Position a Catch Pan
Place a drain pan beneath the lowest hose connection at the water pump or the coolant drain bolt, which for this engine is generally on the side of the pump housing. -
Open the Radiator Cap Carefully
Slowly open the cap to release any residual pressure. Set the cap aside in a clean area. -
Drain the Old Coolant
Loosen the drain bolt or disconnect the lowest hose; let the coolant fully drain. Squeeze the hoses gently to help push out any remaining fluid. -
Inspect and Clean Components
Check for sediment or deposits in the radiator neck and hoses, cleaning away any buildup with a soft brush or clean rag. -
Reinstall Drain Plug or Hose
Tighten the drain bolt to factory specs, or securely reattach the hose. -
Add Fresh Coolant
Using a funnel, slowly pour coolant into the radiator until fluid reaches near the neck. Filling slowly reduces the risk of air pockets. -
Bleed the System
Tilt the bike side-to-side and gently squeeze radiator hoses to expose trapped air. Top off if the level drops. -
Reinstall the Cap, Tank, and Seat
Confirm the cap is tight, then reinstall the tank and seat. -
Warm Up the Bike – Recheck Level
Start the engine, let it idle for several minutes, then shut it down and let cool. Recheck and top off coolant as needed.
Things Every 2019 GAS GAS TXT RACING 280 Owner Should Know
- Mix fresh coolant with distilled water if using a concentrate–never use tap water, as it introduces minerals that cause scaling and corrosion.
- Coolant should be changed at least annually in trials bikes that see heavy use.
- Inspect for leaks and deterioration of hoses, especially after draining and refilling the system.
- Avoid overfilling; expansion during operation requires space for overflow.
Proper coolant changes keep your 2019 GAS GAS TXT RACING 280's power delivery consistent and engine components protected, so you can enjoy top performance—whether you're taking on a new line or maintaining an old favorite.
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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.