How to Change the Coolant in a 2017 Suzuki RMZ450
Shop parts for a 2017 Suzuki RMZ450 Dirt Bike.
Proper cooling system maintenance is essential for ensuring your 2017 Suzuki RMZ450 performs reliably on and off the track. Regular coolant replacement not only maximizes engine life but also prevents overheating – a real concern in high-stress motocross environments. This MotoSport.com guide is tailored to your exact model, noting the process and critical RMZ450-specific tips every owner should know.
Tools & Supplies Needed
- Metric socket set (primarily 8mm, 10mm or 12mm depending on bolt size)
- Drain pan
- Replacement coolant (always use Suzuki SUPER LONG LIFE COOLANT; do not dilute)
- Shop rags
- Optional: Compressed air (for a more thorough flush, if needed)
- New drain bolt gasket washer
- Gloves and eye protection
Step-by-Step Coolant Change Guide
- Ensure bike is completely cool to avoid burns and pressure issues.
- Remove the radiator cap. This allows system air flow and faster draining.
- Locate the coolant drain bolt at the base of the water pump (left side of the engine). Position your drain pan below.
- Remove the drain bolt and allow the coolant to fully drain. Replace the old gasket washer with a new one to ensure a tight seal and prevent leaks.
- For a more complete flush (optional): Remove one lower radiator hose and tilt the bike side to side.
- Inspect the drained coolant. If you detect excessive contamination, consider flushing the system with distilled water. If changing coolant types (e.g., switching from a water-based to a non-water-based formula), use compressed air to clear out all old coolant.
- Reinstall and torque the drain bolt and hose clamps securely.
- Slowly add premixed Suzuki SUPER LONG LIFE COOLANT (never dilute or mix different coolant types). Fill to the radiator neck. The 2017 RMZ450 has an engine coolant capacity of 950 ml (1.0 US qt).
- Bleed air from the system: Crack open the air bleeder bolt on top of the cylinder head until coolant seeps out and re-tighten. Some models may not have a dedicated air bleeder; if not, simply squeeze in any accessible hoses and gently tilt the bike side-to-side to work out air pockets.
- Reinstall the radiator cap securely.
- Start the bike and let it idle with the radiator cap on. Keep watch for leaks. Once warm, shut off the bike, allow it to cool, then recheck the coolant level. Top up as necessary.
RMZ450 Owner Tips
- Only use Suzuki SUPER LONG LIFE COOLANT as specified by Suzuki for corrosion protection and long service life. This coolant should not be mixed or diluted when topping off or replacing.
- Inspect radiator fins for mud, debris, or damage before every coolant change – airflow blockages can cause overheating.
- Be gentle when tightening the plastic radiator cap; overtightening can damage the threads or seal and cause leaks.
- After your first ride post-coolant change, check the level again. Any remaining air pockets may purge once the system undergoes real riding temperatures.
When to Change Your Coolant & What to Watch For
- Suzuki recommends coolant replacement every two years, or as needed for discoloration, contamination, or overheating incidents.
- Avoid using tap water when flushing the cooling system – only use distilled water to prevent mineral scaling.
Keeping your 2017 RMZ450's cooling system dialed means more time riding and less time wrenching. Rely on genuine or high-quality parts from MotoSport.com every time you dig in for maintenance.
Related Shopping Categories
Shop Radiators for a 2017 Suzuki RMZ450 Dirt Bike.
Shop Coolant for a 2017 Suzuki RMZ450 Dirt Bike.
Shop Temperature Sensors for a 2017 Suzuki RMZ450 Dirt Bike.
Shop Tools for a 2017 Suzuki RMZ450 Dirt Bike.
Shop Radiator Hoses for a 2017 Suzuki RMZ450 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.