FUEL SYSTEM/CARBURETION
4.11
FUEL LEVEL
A fuel level test can be performed on some models if
the drain hose fitting is accessible.
Be sure to
re-attach the bowl drain hose after performing the
test. A fuel level test allows you to observe the height
of the fuel in the float bowl without removing the
carburetor. The fuel level can be observed with the
engine either running or shut off, however, engine
must run briefly to allow fuel level to stabilize..
1.
Attach a clear line to drain fitting. Be sure line fits
tightly on fitting.
Position hose along side of
carburetor as shown.
1.5 mm
.060
²
Bowl Mating
Surface
2.
Open
bowl
drain
screw
by
turning
counterclockwise approximately two turns. Start
and run engine for 3 to 5 seconds to allow fuel
level to stabilize in the line.
If level is out of
specification, remove carburetor and inspect inlet
needle and seat, float height, passages, etc.
NOTE:
If a line was removed to perform this
procedure, it must be replaced.
FUEL PUMP
The Polaris Sportsman 600/700 is equipped with a
pressure regulated fuel pump (1-3 PSI). The pump is
located under the left front fender of the machine.
To test the fuel pump:
1.
Turn fuel off.
2.
Disconnect impulse line from pump.
3.
Connect Mity-Vac
t
(
PN 2870975
) to the impulse
line fitting on the pump.
4.
Apply 5 inches (Hg) vacuum to the pump fitting.
The diaphragm should hold vacuum indefinitely.
If fuel is present in the impulse line or vacuum
chamber of the pump, the diaphragm is ruptured. The
pump diaphragms must be replaced.
Fuel Filter
Fuel Pump
Impulse line
FUEL PUMP DISASSEMBLY
1.
Remove the screws from the pump diaphragm
cover. Note the location of the two longer screws.
2.
Remove
the
diaphragm
cover
gasket,
diaphragm, and valve body gasket.
3.
Remove the outlet check valve cover, diaphragm,
and gasket.
FUEL PUMP
INSPECTION/ASSEMBLY
1.
Inspect inlet and outlet check valves for cracks,
warpage or damage. Inspect the diaphragms for
cracks, holes or swelling.
2.
To clean the valves or pump body, remove the set
screw and washer. Remove the valve and wash
with soap and water. Carburetor cleaner may be
used to clean the pump body when the check
valves are removed.
CAUTION:
Some
carburetor cleaners are very caustic and should
not be used to clean the non-metal parts of the
fuel pump.
3.
Check the sealing surfaces of the pump body and
covers. Carefully remove all traces of old gasket
and check the surfaces for damage. Replace
diaphragms and gaskets as a set.
4.
Reassemble the pump in the reverse order of
disassembly. Tighten all screws evenly.
Enfocus Software - Customer Support
Содержание SPORTSMAN 600 2003
Страница 1: ...2003 SPORTSMAN 600 2002 2003 SPORTSMAN 700 SERVICE MANUAL PN 9918066 ...
Страница 52: ...MAINTENANCE MAINTENANCE 2 30 ...
Страница 160: ...CLUTCH CLUTCH 6 26 NOTES ...
Страница 204: ...TRANSMISSION TRANSMISSION 8 16 NOTES ...
Страница 254: ...ELECTRICAL ELECTRICAL 10 30 NOTES ...
Страница 255: ...ELECTRICAL 10 31 WIRING DIAGRAM 2002 SPORTSMAN 700 ...
Страница 256: ...ELECTRICAL 10 32 WIRING DIAGRAM 2003 SPORTSMAN 600 700 ...
Страница 262: ...PN 9918066 Printed in USA ...