How to Change the Coolant in a 2024 GAS GAS TXT GP 300
The 2024 GAS GAS TXT GP 300 stands out for its robust performance, lightweight handling, and competition-focused design–all of which depend on effective cooling for long engine life and consistent power. Routine coolant replacement protects your bike from overheating and component damage, especially under the demanding conditions trial riders face. Here is a proprietary MotoSport guide for changing the coolant on your TXT GP 300, including specifics unique to this model.
What Makes the 2024 GAS GAS TXT GP 300 Special?
- Lightweight, flexible bodywork: Engineered from a special blend of polypropylene, the panels resist permanent deformation even after hard impacts, simplifying maintenance access.
- Quick-access fuel tank: Secured by a single bolt for rapid removal, making access to the cylinder head and radiators much easier during service procedures.
- High-efficiency radiator system: Designed for both low-speed technical sections and high-performance operation–keeping the engine running cool is critical for consistent clutch and throttle response.
Items Needed
- Fresh motorcycle-specific coolant (consult your manual for recommended type)
- 8mm or 10mm socket set (check your drain bolt size)
- Philips screwdriver or T-25 Torx (for shrouds if needed)
- Drain pan
- Funnel
- Gloves and protective gear
- Clean rags
Step-by-Step Coolant Change Procedure
- Allow the bike to cool completely
Never remove the radiator cap when the system is hot–pressure and hot fluid can cause burns. - Remove the seat and tank (if necessary)
On the TXT GP 300, the seat is typically integrated, but the fuel tank can be removed with one bolt. Lift it off to access the radiator and cylinder head. - Locate the coolant drain bolt
The drain bolt is found at the bottom of the water pump housing on the right side of the engine. Place a drain pan under the bolt. Remove the bolt (typically 8mm or 10mm), and also remove the radiator cap to speed up draining by letting air into the system. - Drain the coolant
Let all the coolant completely drain from both the radiators and the engine. Inspect the old coolant for any contamination or particles that may indicate internal wear. - Reinstall the drain bolt
Wipe the area and thread the bolt back in. Torque to spec if you have the information, and check for any signs of gasket or washer wear. - Refill with fresh coolant
Using a funnel, pour the new coolant slowly into the radiator until it reaches the top. The TXT GP 300 has a compact system–do not overfill. Gently rock the bike side to side to help release air pockets. - Bleed the system
Once filled, loosely fit the cap and start the bike for a few minutes. Turn it off, let it cool, and recheck the coolant level. Top up if necessary. - Final checks
Inspect for leaks at the drain bolt and around the radiator cap. Wipe any spilled coolant off engine surfaces and plastic, as it can be corrosive or slippery.
Tips Specific to the TXT GP 300
- All bodywork is robust and returns to shape after impact. However, always remove and reinstall panels carefully to avoid unnecessary stress near bolt areas.
- Radiators and the compact fuel tank make for a tight fit, but the one-bolt removal system speeds up service. Be sure hoses are not kinked on reinstallation.
- The TXT GP 300 uses a high-performance engine where maintaining proper coolant mix and level is crucial for clutch feel and maximum engine life. Only use coolant types compatible with magnesium and aluminum engine cases.
- If you notice milky coolant or persistent loss of coolant, inspect for possible head gasket or water pump issues.
Model-Focused Maintenance Advice
- Check your coolant level before every major ride, as even minor leaks can have outsized effects on trials bikes due to their smaller coolant volume.
- Consider replacing the thermostat and radiator cap if you see recurring overheating or pressure problems.
- Always use fresh coolant after any engine work or after a season of heavy competition use.
Maintaining your TXT GP 300's cooling system is key to getting the most out of its lightweight, responsive performance. Following this MotoSport guide keeps your machine ready for the toughest trial courses.
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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.