Honda CRF150R 2020 Owner's Manual & Competition Handbook page 48

Coolant
Cooling System Inspection
1. Check the cooling system for leaks (see the
Honda Service Manual for troubleshooting of
leaks).
2. Check the water hoses (1) for cracks,
deterioration, and hose clamps bands for
looseness.
3. Check the radiator mount for looseness.
4. Make sure the overflow hose (2) is connected
and not clogged.
5. Check the radiator fins for clogging.
6. Check the bleed hole (3) below the water pump
cover (4) for leakage. Check for signs of seal
leakage. A small amount of "weeping" from
the bleed hole is normal. See the Honda
Service Manual or consult your dealer for
replacing the water seal or the oil seal. Both
seals should be replaced at the same time.
42
Servicing Your Honda
(1)
(2)
(1)
(3)
(1) water hoses
(2) overflow hose
(3) bleed hole
(4) water pump cover
Coolant Replacement
Refer to Safety Precautions on page 19.
Coolant should be replaced by your dealer, unless
you have the proper tools and service data and are
mechanically qualified. Refer to the Honda
Service Manual (page 148).
WARNING
Removing the radiator cap while the
engine is hot can cause the coolant to
spray out, seriously scalding you.
Always let the engine and radiator cool
down before removing the radiator cap.
To properly dispose of drained coolant, refer to
You & the Environment, page 130.
NOTICE
Improper disposal of drained fluids is harmful to
the environment.
(4)