Radiator Removal - Suzuki RG250 Service Manual

.
4·3 COOLING SYSTEM
REMOVAL
-
• Remove the middle and lower cowl ing, (Refer
to page 7-1)
• Drain the coolant by removing drain plug.
(Refer to page 3-1
I.
• Disconnect water hoses. (Refer to page 3-4)
• Loosen the radiator mounting nuts.
• Remove the radiator .
INSPECTION
Before removing the radiator and draining coolant,
inspect the following two items.
1. Test the cooling system for tightness by
using the radiator tester as follows:
Remove the radiator cap, and connect the
tester to the filler. Give a pressure of about
1 kg/cml and see
if the
system holds this
pressure for
10
seconds. If the pressure should
fall during th is 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 component or part.
2. Test the radiator cap for relieving pressure by
using the radiator tester in the following
manner: Fit the cap to the tester, as shown,
and build up pressure slowly by operating the
tester. Make sure that the pressure build-up
stops at 0.9
±
0.15
kg/cm
2
and that, with the
tester held standstill, the cap is capab le of
that pressure for at least 10 seconds. Replace
the cap if it is found not to satisfy either of
these two requirements .
CD
Rad iator cap tester
en
Radiator cap
Radiator cap val ve
release pressure
90
± 15 kPa
(0.9
±
0.15 kg/em')