Honda Hawk GT NT650 1988 Service Manual page 75

COOLANT REPLACEMENT
_L- _
The engine must be cool before replacing the coolant or severe
scalding may result.
If the engine must be running to do some work, make sure the
area is well-ventilated. Never run the engine in an enclosed
area.
The exhaust contains poisonous carbon monoxide gas that may
cause loss of consciousness and lead to death. .
Remove the radiator cap (page 5-21.
Drain the coolant from the system by removing the drain bolt
on the water pump cover.
Reinstall the drain bolt.
Fill the system with
50- 50
mixture of distilled water and eth-
ylene glycol.
Bleed air from the cooling system.
Support the motorcycle on its center stand and shift the
transmission into neutral.
Start the engine and snap the throttle grip, 3-4 times at
4,000- 5,000
rpm. Then add coolant up to the radiator
filler neck.
Reinstall the radiator cap.
Check the level of coolant in the reserve tank and fill to the
correct level if the level is low.
THERMOSTAT
REMOVAL
Remove the following:
- fuel tank (page
4-3)
- air cleaner case (page
4-3)
Remove the thermostat housing mounting bolts.
Disconnect the siphon tube from the filler neck.
Disconnect the upper radiator hose at the filler neck and the
water hoses at the thermostat housing.
cover attaching bolts and separate the
Remove the thermostat from the housing case.
COOLING SYSTEM
(1) HOUSING MOUNTING BOLT
18) COVER
80~ ~
IJ
Y /
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/
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J~
011+--="'"
(5) WATER HOSES
5-3