Suzuki GSF650A Service Manual page 48

0B-15 Maintenance and Lubrication:
Engine Coolant Change
Refer to "Engine Coolant Description in Section 1F
(Page 1F-1)".
WARNING
!
Do not open the radiator cap when the engine
is hot, as you may be injured by escaping hot
liquid or vapor. Engine coolant may be
harmful if swallowed or if it comes in contact
with skin or eyes. If engine coolant gets into
the eyes or in contact with the skin, flush
thoroughly with plenty of water. If swallowed,
induce vomiting and call physician
immediately.
1) Remove the fuel tank. Refer to "Fuel Tank Removal
and Installation in Section 1G (Page 1G-9)".
2) Remove the radiator cap (1).
3) Drain engine coolant by disconnecting the water
pump outlet hose (2).
4) Flush the radiator with fresh water if necessary.
5) Reconnect the water pump outlet hose.
6) Pour the specified engine coolant up to the
thermostat connector inlet.
Engine coolant capacity
Reservoir side: 250 ml (0.3/0.2 US/lmp qt)
Engine side: 2 750 ml (2.9/2.4 US/lmp qt))
1
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2
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7) Bleed air from the cooling circuit.
8) After changing engine coolant, reinstall the removed
parts.
Air Bleeding From the Cooling Circuit
1) Support the motorcycle upright with the center stand.
2) Lift up the fuel tank by removing the mounting bolts.
Refer to "Fuel Tank Removal and Installation in
Section 1G (Page 1G-9)".
3) Place a rag under the thermostat connector.
4) Pour engine coolant up to the thermostat connector
inlet.
5) Slowly swing the motorcycle, right and left, to bleed
the air trapped in the cooling circuit.
6) Add engine coolant up to the thermostat connector
inlet.
7) Start up the engine and bleed air from the thermostat
connector inlet completely.
8) Add engine coolant up to the thermostat connector
inlet.
9) Repeat the 6), 7) procedures until no air bleeds from
the thermostat connector inlet.
10) Close the radiator cap securely.
11) After warming up and cooling down the engine
several times, add the engine coolant up to the full
level of the reservoir.
CAUTION
!
Make sure that the radiator is filled with
engine coolant up to the reservoir full level.
12) Reinstall the removed parts.
I717H1020013-01