Arctic Cat 400 Service Manual page 397

5. Connect a multimeter to the power supply leads
with the red tester lead to the brown wire and the
black tester lead to the black/red wire; then turn
the ignition switch to the ON position. The
meter should read battery voltage. If battery
voltage is indicated and the fuel pump does not
run, replace the pump assembly. If no battery
voltage is indicated, check the CDI and the vehi-
cle tilt sensor.
NOTE: To test the fuel gauge tank sensor, the
fuel pump assembly must be removed.
REMOVING
1. Remove the rear rack and fenders (see Section
8); then disconnect the power supply/ fuel gauge
connector.
2. Remove the spring clamp; then remove the fuel
hose.
3. Remove the screws securing the fuel pump to
the gas tank; then make a reference mark on the
fuel pump and tank.
4. Rotate the fuel pump assembly clockwise 90° to
allow removal without removing the fuel tank.
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KX186
KX187
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5. Lift out the fuel pump assembly carefully tilting
it forward to clear the voltage regulator; then
guide the pump and float lever through the
opening in the gas tank.
! CAUTION
Take care not to damage the float or float arm or
replacement of the entire assembly will be
necessary.
6. Using duct tape or other suitable means, cover
the fuel pump opening.
INSPECTING
AT THIS POINT
If the pump has failed earlier test and must be
replaced, proceed to INSTALLING.
1. Inspect the fuel screen and blow clean with low
pressure compressed air.
2. Move the float lever and check for free move-
ment. The float assembly should return to the
lower position without force. If not, replace the
fuel pump assembly.
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