Arctic Cat ATV 250 Utility 2009, Руководство по обслуживанию

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4-8
KM043A
In the OFF position, the valve will not allow gasoline
to flow to the carburetor. In the ON position (the nor-
mal operating position), gasoline will flow from the
tank to the carburetor. In this position 4.54 L (1.2 U.S.
gal.) will remain in the tank as a reserve quantity.
Moving the valve to the RES position will allow the
operator to use the remaining gasoline in the tank.
When turning the valve to any of the three positions,
make sure the indicator is pointed directly at the posi-
tion desired.
REMOVING/INSPECTING
1. Remove the gas hose from the valve by releasing
the clamp.
2. Remove the two machine screws securing the
valve; then remove the valve. Account for the gas-
ket.
3. Inspect the gasket and valve/tank mating surfaces
for damage or deterioration.
4. Inspect for and remove any obstructions in the
valve.
INSTALLING
1. Place the valve and gasket into position on the
tank and secure with the machine screws. Tighten
securely.
2. Install the gas hose onto the valve with the clamp.
Gas/Vent Hoses
Replace the gas hose every two years. Damage from
aging may not always be visible. Do not bend or
obstruct the routing of the carburetor vent hose. Make
sure the vent hose is securely connected to the carbure-
tor and the opposite end is always open.
Oil Flow Chart
KM427A
Oil Pump
„
NOTE: Whenever internal engine components
wear excessively or break and whenever oil is con-
taminated, the oil pump should be disassembled,
cleaned, and inspected.
„
NOTE: The oil pump is not a serviceable compo-
nent. If the pump is defective, the oil pump must
be replaced.
REMOVING/DISASSEMBLING
1. Remove the oil pump from the engine (see
Right-Side Components in Section 3).
2. Remove the Phillips-head screw on the back side
of the pump and separate the pump housing and
cover. Note the position of the inner and outer
rotors and alignment pin for assembly.
3. Remove oil pump components.
CLEANING AND INSPECTING
„
NOTE: If any part is worn excessively, cracked, or
damaged in any way, the oil pump must be
replaced.
1. Clean all oil pump components.
2. Inspect the rotors for scoring and gouges.
3. Inspect the alignment pin, driveshaft, and driven
sprocket for damage.
4. Inspect the pump housing and cover for cracks or
damage.
ASSEMBLING/INSTALLING
1. Place the rotors into the pump housing making
sure the alignment pin is in the groove of the rotor.
! WARNING
Drain the gas tank prior to this procedure.
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