How to Change the Coolant in a 2014 Yamaha TTR110
Shop parts for a 2014 Yamaha TTR110 Dirt Bike.
Maintaining optimal engine temperature is crucial for the performance and reliability of your 2014 Yamaha TTR110. While the TTR110 is known for its air-cooling system, some riders may use aftermarket kits or modifications that require coolant. For owners of the factory air-cooled model, routine inspection ensures your dirt bike stays trouble-free on and off the track. For those with liquid cooling conversions, here–s how to perform a proper coolant change tailored to the unique needs of the TTR110 platform.
Tools & Supplies Needed
- Fresh coolant compatible with off-road motorcycles
- Drain pan
- Screwdrivers
- Socket set or wrench (typically 8 mm–10 mm)
- Clean rag or paper towels
- Funnel
- Distilled water for flushing (optional but recommended)
- Rubber gloves
Step-by-Step Guide to Changing Coolant
- Let the engine cool completely. Working on a hot engine can be dangerous and may result in burns or coolant spray.
- Remove the seat and side covers as needed to access the radiator and coolant components if applicable.
- Locate the radiator cap and coolant drain bolt. If your TTR110 uses a custom radiator and water pump, these will be installed similar to most small dirt bikes.
- Position your drain pan under the drain bolt. Gradually loosen and remove the coolant drain bolt located at the bottom of the radiator or on the engine case where the water pump is mounted. Allow the coolant to drain completely.
- Remove the radiator cap to improve flow as the coolant drains out.
- Optional: Flush the system with distilled water by reinstalling the bolt and filling the radiator, then draining again. Repeat if the old coolant was dirty or contaminated.
- Reinstall the drain bolt and any sealing washers, ensuring a snug fit without over-tightening.
- Fill the radiator with fresh coolant up to the recommended level. Use a funnel for a tidy pour. It–s best to fill slowly, allowing air bubbles to rise. If your system has a bleeder screw, loosen it slightly until coolant flows without air, then retighten.
- Bleed air from the system by gently tilting the bike or squeezing radiator hoses if accessible. Top off coolant as necessary.
- Reinstall the radiator cap securely.
- Start the engine and let it idle for several minutes, watching for leaks and monitoring the coolant level. Shut down, let it cool, and recheck the level—top off if needed.
- Reassemble plastic covers and the seat.
Model-Specific Notes for the TTR110
The Yamaha TTR110 is factory air-cooled; OEM models do not require or use liquid coolant. If you are performing a coolant service, this guide assumes you have installed an aftermarket liquid cooling system or are servicing a modified bike. Always refer to your specific hardware instructions. For routine maintenance on a stock TTR110, focus on ensuring adequate airflow to the cylinder and cleaning/maintaining the external cooling fins.
Tips for Maintaining Your TTR110
- For unmodified, air-cooled TTR110s, inspect the cooling fins for debris and ensure the engine is free of dirt or mud buildup.
- Use only engine coolants safe for aluminum engines if your bike includes any liquid cooling components.
- Always properly dispose of used coolant—never pour it down the drain or on the ground.
- Check for leaks or loose hoses if you have a liquid cooling setup.
- Follow recommended coolant change intervals per your kit manufacturer or every two years for custom systems.
Whether you–re racing, trail riding, or maintaining a kid–s first dirt bike, keeping your Yamaha TTR110 in peak condition starts with proper routine care.
Related Shopping Categories
Shop Radiators for a 2014 Yamaha TTR110 Dirt Bike.
Shop Coolant for a 2014 Yamaha TTR110 Dirt Bike.
Shop Temperature Sensors for a 2014 Yamaha TTR110 Dirt Bike.
Shop Tools for a 2014 Yamaha TTR110 Dirt Bike.
Shop Radiator Hoses for a 2014 Yamaha TTR110 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.