User Manual - Page 76

For CRF450X 2020.

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68 Servicing Your Honda
Coolant
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 66).
3. Remove the reserve tank cap (3) and fill the
reserve tank up to the UPPER level line (4).
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.
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.
Cooling System Bleed Air
Capacity: 1.31 US qt (1.24 ℓ)
after disassembly
1.20 US qt (1.14 ℓ)
after draining
(1) radiator cap (2) filler neck
(3) reserve tank cap (4) UPPER level line
31MKE710.book68ページ2019年3月11日 月曜日 午前10時47
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