COOLING AND LUBRICATION SYSTEM 5-3
COOLING CIRCUIT
COOLING CIRCUIT INSPECTION
Before removing the radiator and draining the engine coolant,
inspect the cooling circuit for tightness.
• Remove the cowling. (#6-6)
• Remove the radiator cap
1 and connect the tester
2 to the
filler.
"
• Give a pressure of about 110 kPa (1.1 kgf/cm², 15.6 psi) and
see if the system holds this pressure for 10 seconds.
• If the pressure should fall during fhis 10-second interval, it
means that there is a leaking point in the system. In such a
case, inspect the entire system and replace the leaking com-
ponent or part.
"
!
Do not remove the radiator cap when the engine is
hot.
When removing the radiator cap tester, put a rag on
the filler to prevent spouting of engine coolant.
Do not allow the pressure to exceed the radiator cap
release pressure, or the radiator can be damaged.
THERMOSTAT
RESERVE TANK
RADIATOR (Upper)
NO. 1 CYLINDER HEAD
NO. 1 CYLINDER
NO. 2 CYLINDER
NO. 2 CYLINDER HEAD
RADIATOR (Lower)
WATER PUMP
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