Tilt Sensor - Arctic Cat 2016 Alterra 500 Service Manual

5. If the pump is producing fuel pressure that is out of
specification, check all electrical connectors and ver-
ify the pump is getting proper voltage (battery volt-
age).
6. Connect a multimeter to the power supply leads with
the red tester lead to the red wire and the black tester
lead to the black wire; then turn the ignition switch to
the ON position. The meter should read battery volt-
age.

NOTE: Low voltage will produce a low fuel pressure
reading.
7. If normal battery voltage is present and the ground
wire has been checked for continuity to chassis,
replace the fuel pump. If no voltage is present, deter-
mine if the fuel pump fuse, relay, wiring, tilt sensor,
or ECM is causing no voltage.

NOTE: If the gauge is flashing FUEL OFF, the tilt
sensor system has intentionally deactivated the fuel
system.
Removing
1. Disconnect the gasline hose and fuel pump connec-
tors.
2. Remove the screws securing the fuel pump to the gas
tank; then make a reference mark on the fuel pump
and tank.
3. Lift out the fuel pump assembly; 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.
4. 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 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
to the fuel level sensor leads; then select OHMS. The
multimeter should show 5 ohms at full fuel position
and 95 ohms at empty fuel position.

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.
Installing
1. Mark the new fuel pump with a reference mark in the
same location as the removed pump; then place the
new gasket on the pump.
128
2. Remove the material covering the fuel pump open-
ing; then carefully guide the fuel pump into position
taking care not to damage the float or float lever.
KX190
3. Rotate the fuel pump until the match marks align;
then install the mounting screws and tighten securely
using a crisscross pattern.

NOTE: It is critical to install the fuel pump with the
correct orientation to ensure adequate float lever
clearance.
4. Connect the wires, fuel hose, and spring clamp; then
turn the ignition switch to the ON position. Note that
the fuel pump runs momentarily and the fuel gauge
indicates the proper fuel level.
5. With the transmission in neutral and brake lever lock
engaged, start the engine and check for normal oper-
ation. Check for any fuel leaks.

TILT SENSOR

! WARNING
Incorrect installation of the tilt sensor could cause sud-
den loss of engine power which could result in loss of
vehicle control resulting in injury or death.
CAUTION
Do not drop the tilt sensor as shock can damage the
internal mechanism.
Supply Voltage
1. Disconnect the three-wire connector from the sensor;
then select DC Voltage on the multimeter and con-
nect the red tester lead to the orange wire (C) and the
black tester lead to the pink/black wire (A).
XR197A