Honda Metropolitan CHF50 Service Manual page 122

COOLING SYSTEM
Place the scooter on its centerstand on a flat, level
surface.
Fill the reserve tank to the upper level line.
Fill the system with the recommended coolant
through the filler opening to the filler neck.
Bleed air from the system as follow:
1. Start the engine and let it idle for 2 - 3 minutes.
2. Snap the throttle three or four times to bleed air
from the system.
3. Stop the engine and add coolant to the proper
level if necessary. Reinstall the radiator cap.
Check the level of coolant in the reserve tank and
UPPER LEVEL LINE
LOWER LEVEL LINE
4.
fill to the upper level if it is low.
Install the maintenance cover and close the seat.
Install the radiator cover and tighten the screws to
the specified torque.
TORQUE: 0.9 N-m (0.1 kgf m, 0.7 Ibf-ft)
MAINTENANCE COVER
6-8