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4.46
CARBURETOR - SPORTSMAN 450
Fuel Pump Inspection and Reassembly
1. Inspect inlet and outlet check valves for cracks, warping or
damage.
2. Inspect the diaphragms for cracks, holes or swelling.
3. To clean the valves or pump body, remove the set screw and
washer. Remove the valve assembly and wash with soap
and water.
NOTE: Carburetor cleaner may used to clean the
pump body when the check valves are removed.
4. Carefully remove all traces of old gaskets and check the
surfaces for damage. Replace diaphragms and gaskets as a
set.
5. Reassemble the pump in reverse order of disassembly.
Tighten all screws evenly.
Fuel Filter Replacement
1. Loosen the filter clamps and remove filter.
2. Install new filter onto fuel lines and install clamps.
FUEL GAUGE SENDING UNIT
Sending Unit Removal
1. Disconnect the negative battery cable.
2. Remove the side panels and front cab assembly. Refer to
Chapter 5 for details.
3. Remove the gas tank cover vent hose. Be sure to properly
route the vent hose upon reassembly.
4. Remove the clamps on the PVT intake duct and remove the
PVT duct.
5. With all the body panels removed from the front of the ATV
and the gas tank exposed, disconnect the fuel sender wiring
harness.
CAUTION
Carburetor cleaners are caustic and should not be
used to clean non-metal parts of the fuel pump.
Avoid breathing of vapors.
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