Coolant Pressure Cap
Inspection
Do
not
remove
the coolant pressure cap when the
engine
is
hot.
When the engine
is
hot,
the coolant
inside the radiator
is
hot
and
also under pressure.
Contact with hot coolant will cause scalds
and
skin
damage.
Before starting work, ensure
the
motorcycle
is
stabilised
and
adequately supported. This will help
prevent
it
from falling
and
causing injury
to
the
operator or damage
to
the motorcycle.
1.
Remove the pressure
cap
as
described
in
the
coolant drain section
on
page
12.6.
2.
Check condition of the upper and lower seals
of
the coolant pressure
cap.
1.
Lower
Seal
2.
Upper
Seal
3.
Spring
Note:
• If there
is
any sign
of
damage or
deterioration replace the cap.
3.
Pressure test the cap
to
the blow off pressure
of
1.2 bar using proprietary tools.
If
the cap opens
at a lower pressure or fails to open at 1.2
bar,
replace the
cap.
4.
Refit the pressure
cap
as
described
in
the
coolant fill section
on
page
12.7.
Cooling
Thermostat
Removal
Before starling work, ensure the motorcycle
is
stabilised
and
adequately supported. This will
help
prevent
it
from falling
and
causing injury to the
operator or damage to the motorcycle.
1.
Remove
the rider's seat.
2.
Disconnect the battery, negative (black) lead first.
3.
Drain the coolant
as
described
on
page
12.6.
Do
not
remove
the coolant pressure cap when the
engine
is
hot.
When the engine
is
hot,
the coolant
inside the radiator
is
hot and also under pressure.
Contact with hot coolant
will
cause scalds
and
skin
damage.
4.
Disconnect the top
and
bypass hoses at the
thermostat housing.
1.
Top
hose
2.
Bypass
hose
5.
Release the fixings securing the thermostat
housing
to
the cylinder
head.
6.
Withdraw
the
housing
and
collect the thermostat.
Service Manual- Rocket
III
12.9
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