Coolant Replacement - Honda TRX680FA Service Manual

COOLING SYSTEM
Excessive pressure
can damage the
cooling system
components- Do
not exceed 137 kPa
(1.4 kgf/cm
2
, 20
psi).
RADIATOR CAP/SYSTEM PRESSURE
INSPECTION
Remove the radiator cap (page 7-5).
Wet the sealing surfaces of the cap, then install the
cap onto tester.
TOOLS:
Cooling system pressure tester SVTS4AH
Cooling system adaptor OTCJ33984A
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:
108 - 137 kPa (1.1 - 1.4 kgf/cm
2
, 16 - 20 psi)
Pressure test the radiator, engine and hoses, and
check for leaks.
Repair or replace components if the system will not
hold the specified pressure for at least 6 seconds.
Remove the tester and install the radiator cap.
Install the steering cover (page 3-5).
TESTER
RADIATOR CAP
TESTER
COOLANT REPLACEMENT
PREPARATION
NOTICE
Using coolant with silicate corrosion inhibitors may
cause premature wear of water pump seals or
blockage of radiator passages. Using tap water may
cause engine damage.
NOTE:
• 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 rec-
ommended antifreeze.
RECOMMENDED ANTIFREEZE:
Pro Honda HP Coolant or an equivalent high
quality ethylene glycol antifreeze containing
silicate-free corrosion inhibitors
RECOMMENDED MIXTURE:
1:1 (distilled water and the recommended
antifreeze)
ANTIFREEZE
SOLUTION
(ETHYLENE
GLYCOLBASE
SOLUTION)
LOW MINERAL
OR DISTILLED
WATER
'COOLANT
7-6