Suzuki LT-Z400, Service Manual

Page: 40 / 492

0B-14 Maintenance and Lubrication:
Engine coolant change
Refer to “Engine Coolant Description in Section 1F
(Page 1F-2)”.
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 right side cover. Refer to “Exterior Parts
Removal and Installation in Section 9D (Page 9D-
4)”.
2) Remove the radiator cap (1).
3) Place a pan below the water pump, and then drain
the engine coolant by removing the drain plug (2).
4) Flush the radiator with fresh water if necessary.
5) Tighten the drain plug (2) to the specified torque.
CAUTION
!
Replace the gasket with a new one.
Tightening torque
Engine coolant drain plug (a): 6 N·m (0.6 kgf-m,
4.5 lb-ft)
6) Pour the specified engine coolant up to the radiator
inlet.
Engine coolant capacity
Reservoir side: 250 ml (0.3/0.2 US/lmp qt)
Engine side: 900 ml (1.0/0.8 US/lmp qt)
7) Bleed air from the cooling circuit.
8) After changing engine coolant, reinstall the removed
parts.
Air bleeding from the cooling circuit
1) Place the vehicle on a level ground.
2) Pour engine coolant up to the radiator inlet.
3) Slowly swing the vehicle, right and left, to bleed the
air trapped in the cooling circuit.
4) Add engine coolant up to the radiator inlet.
5) Start up the engine and bleed air from the radiator
inlet completely.
6) Add engine coolant up to the radiator inlet.
7) Repeat the 6), 7) procedures until no air bleeds from
the radiator inlet.
8) Close the radiator cap securely.
I933H1020030-01
1
I933H1020031-01
2
I933H1020032-01
(a)
2
I933H1020033-01
I933H1020034-01
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