Coolant Replacement - Honda CBR125R Owner's Manual

COOLING SYSTEM
RADIATOR CAP/SYSTEM PRESSURE
INSPECTION
Remove the radiator cap (page 6-5).
Wet the sealing surfaces of the cap, then install the
cap onto the tester.
Pressurize the radiator cap using the tester. Replace
the radiator cap if it does not hold pressure, or if
relief pressure is too high or too low. It must hold
the specified pressure for at least 6 seconds.
RADIATOR CAP RELIEF PRESSURE:
93.2 – 122.6 kPa (0.95 – 1.25 kgf/cm
Pressurize the radiator, engine and hoses using the
tester, and check for leaks.
Excessive pressure can damage the cooling system
components. Do not exceed 122.6 kPa (1.25 kgf/cm
17.8 psi).
Repair or replace components if the system will not
hold the specified pressure for at least 6 seconds.
Remove the tester.
Install the radiator cap (page 6-5).

COOLANT REPLACEMENT

PREPARATION
• The effectiveness of coolant decreases with the
accumulation of rust or if there is a change in the
mixing proportion during usage. Therefore, for
best performance change the coolant regularly
as specified in the maintenance schedule.
• Mix only distilled, low mineral water with the
recommended antifreeze.
RECOMMENDED ANTIFREEZE (Except CM type):
High quality ethylene glycol antifreeze containing
silicate-free corrosion inhibitors
RECOMMENDED ANTIFREEZE (CM type only):
Pro Honda HP coolant or equivalent high quality
ethylene glycol antifreeze containing silicate-free
corrosion inhibitors
STANDARD COOLANT CONCENTRATION:
1:1 (mixture with distilled water)
6-6
2
, 13.5 – 17.8 psi)
RADIATOR CAP TESTER
2
,
ANTIFREEZE
SOLUTION
(ETHYLENE
GLYCOL BASE
SOLUTION)
RADIATOR CAP
RADIATOR CAP TESTER
LOW MINERAL
OR DISTILLED
WATER
COOLANT