98
1. Turn the ignition switch ON and listen for a momen-
tary “whirring” sound of the pump building pressure.
If the sound is heard (10 seconds), no electrical
checks are necessary. Turn the ignition switch OFF.
2. Disconnect the fuel hose from the fuel rail; then
install a suitable pressure gauge.
CF730A
3. Reconnect the fuel pump electrical connector; then
turn the ignition switch to the ON position. The fuel
pressure should build until the pump shuts off. Pres-
sure should read 3.0 kg-cm
2
(43 psi).
4. If the pump is not running, disconnect the fuel
pump/sensor connector.
5. Connect a multimeter to the power supply leads with
the red tester lead to the orange/red wire and the
black tester lead to the black wire; then turn the igni-
tion 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 ECM and the vehicle tilt sensor.
REMOVING
1. Remove the rear rack and fenders (see Steer-
ing/Body/Controls); then disconnect the power sup-
ply/fuel hose connector.
2. Disconnect the fuel hose and fuel pump connector.
3. Remove the screws securing the fuel pump to the gas
tank; then make a reference mark on the fuel pump
and tank.
4. Lift out the fuel pump assembly carefully tilting it for-
ward to clear the voltage regulator; then guide the pump
and float lever through the opening in the gas tank.
5. Using duct tape or other suitable means, cover the
fuel pump opening.
INSPECTING
1. Inspect the fuel screen and blow clean with low pres-
sure compressed air.
2. Move the float lever and check for free movement.
The float assembly should return to the lower posi-
tion without force. If not, replace the fuel pump
assembly.
3. Test the fuel level sensor by connecting a multimeter
(A) to the fuel level sensor leads (B); then select
OHMS. The multimeter should show 5 ohms at full fuel
position (C) and 95 ohms at empty fuel position (D).
ATV2116
NOTE: If readings are erratic, clean the resistor
wiper and resistor with clean alcohol and retest. If
still not correct, replace the fuel level sensor.
Replacing Fuel Level Sensor
To replace the fuel level sensor, use the following proce-
dure.
1. Cut the two blue wires (A) in the location shown.
2. Slide the existing fuel level sensor assembly (B) up
and off the fuel pump assembly housing.
XR257A
3. Keeping the float attached to the float arm; then
remove the float arm from the existing fuel level sen-
sor. Press the float arm into the new fuel level sensor
assembly. Ensure it locks into place.
! WARNING
Gasoline may be under pressure. De-pressurize the fuel
system by disconnecting the fuel pump electrical con-
nector and running the engine until it stalls. Place an
absorbent towel around the connector to absorb any
gasoline when disconnecting.
CAUTION
Take care not to damage the float or float arm or
replacement of the entire assembly will be necessary.
AT THIS POINT
If the pump has failed earlier test and must be replaced,
proceed to INSTALLING.
Содержание VLX 70002017
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