Section 06
COOLING SYSTEM
Subsection 02
(CIRCUIT, COMPONENTS AND CARE)
SMR2000-054_06_02A.FM
06-02-7
The water flow regulator valve is mounted directly
onto the muffler.
TYPICAL
1. Water supply hose of regulator valve
2. Regulated water to injection fitting
3. Water injected into the muffler
NOTE:
The water injected into the muffler is not
regulated by the valve. A calibrated water injection
fitting of 3.0 mm (.118 in) on
carburetor-equipped
models
and 4.0 mm (.156 in) on
DI models
inside
diameter limits water flow into the muffler.
The water flow regulator valve has a calibrated
spring and a tapered needle which regulate the
injected water in the tuned pipe.
CAUTION:
Do not change the calibration of the
spring, otherwise serious engine damage can
occur.
At low speed, water pressure in the supply hose
of the regulator valve is not sufficient to overcome
the spring of the regulator valve; more water is
being delivered to the injection fitting at the tuned
pipe.
LOW SPEED OPERATION
1. Water entering regulator valve
2. Water exiting regulator valve (less restriction)
3. Water injected in the muffler
At higher speed, water pressure increases in the
supply hose of the regulator valve and gradually
overcomes the return spring of the regulator
valve. Less water is being delivered to the injec-
tion fitting at the tuned pipe.
HIGH SPEED OPERATION
1. Water entering regulator valve
2. Water exiting regulator valve (more restriction)
3. Water injected in the muffler
F01E1FA
1
2
3
1
F01E2BA
3
2
1
F01E2CA
3
2
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Summary of Contents for 2001 RX
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Page 349: ...SMR2000 073_14_00A FM GTX DI MODEL 5649 5659 www SeaDooManuals net ...
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