Honda CRF450X 2017 Owner's Manual & Competition Handbook page 55

Coolant
Cooling System Bleed Air
1. Remove the radiator cap (1).
2. Fill the system with the recommended
coolant through the filler opening up to filler
neck (2). Use a fresh recommended coolant
mixture (page 48).
Capacity: 1.28 US qt (1.21 ℓ)
(1)
(1) radiator cap
(2) fi ller neck
50
Servicing Your Honda
17 CRF450X̲31MEY710.indb 50 17 CRF450X̲31MEY710.indb 50
3. Remove the reserve tank cap (3) and fill the
reserve tank to the UPPER level line (4).
(3)
(4)
(2)
(3) reserve tank cap
(4) UPPER level line
4. Bleed air from the system as follows:
• Shift the transmission into neutral. Start the
engine and let it idle 2 – 3 minutes.
• Snap the throttle three – four times to bleed
air from the system.
• Stop the engine and, if necessary, add
coolant up to the proper level. Reinstall the
radiator cap.
• Check the level of coolant in the reserve
tank and fill to the UPPER level if it is low.
NOTICE
If the radiator cap is not installed properly, it will
cause excessive coolant loss and may result in
overheating and engine damage.
5. Install the reserve tank cap.
2016/06/08 11:45:42 2016/06/08 11:45:42