4-18
INSPECTING
1. Inspect the fuel screen and blow clean with low
pressure 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 level
sensor assembly.
3. Test the fuel level sensor by connecting a multime-
ter (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.
4. To replace the fuel level sensor, use the following
procedure.
A. Disconnect the two-wire connector (A); then
press the fuel level sensor toward the top of the
fuel pump to release it from the mounting slot
(B).
FI460A
B. Engage the tabs (C) of the fuel level sensor into
the mounting slot (B) and press toward the bot-
tom of the fuel pump to latch in place; then con-
nect the two-wire connector (A).
INSTALLING
1. Place the fuel pump assembly into the gas tank
with a new gasket aligning the match marks; then
secure with the four screws. Tighten securely.
NOTE: It is important to install the fuel pump with
the correct orientation to ensure adequate float
lever clearance.
2. Connect the gasline hose to the fuel pump pipe and
secure with the hose clamp; then connect the elec-
trical plug to the main harness.
3. Connect the negative battery cable; then turn the
ignition switch to the ON position and verify that
no gas leaks are present, the pump runs for 2-3
seconds, and the gas gauge reading is normal.
4. Start the engine to verify proper engine operation;
then shut off the engine and install the right-side
seat-base, center console, and seats making sure
the seats lock securely into place.
Vacuum Pulse
Fuel Pump
(650 cc)
NOTE: The vacuum pulse fuel pump is a nonser-
viceable assembly. If the pump fails, it must be
replaced.
TESTING
1. Disconnect the fuel pump/carburetor hose at the
fuel pump; then connect a hose and suitable pres-
sure gauge to the fuel pump output fitting.
AT THIS POINT
If the pump has failed earlier test and must be
replaced, proceed to INSTALLING.
AT THIS POINT
Prior to removing the vacuum pulse fuel pump, the
following test should be performed to determine that
removal is necessary.
! WARNING
Whenever any maintenance or inspection is made
on the fuel system during which there may be fuel
leakage, there should be no welding, smoking, open
flames, etc., in the area.
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