Engine Rpm (Idle); Gas Tank; Oil Filter/Oil Pump; Testing Oil Pump Pressure - Arctic Cat 450 Service Manual

3. Tighten the jam nut against the throttle cable adjuster
securely; then slide the rubber boot over the adjuster.

Engine RPM (Idle)

 NOTE: The idle RPM is not adjustable on the EFI
models.

Gas Tank

! 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.
REMOVING
1. Remove the seat.
2. Remove the rear rack and fenders (see Section 8).
3. Disconnect the hose from the fuel pump to the throt-
tle body by compressing the release on the connec-
tor.
4. Remove the cap screws securing the gas tank to the
frame.
5. Disconnect the fuel gauge connector; then remove
the gas tank.
ATV-0047
FI092A
Manual
Table of Contents
CLEANING AND INSPECTING
 NOTE: Whenever a part is worn excessively,
cracked, or damaged in any way, replacement is nec-
essary.
1. Clean all gas tank components with parts-cleaning
solvent.
2. Inspect all hoses for cracks or leaks.
3. Inspect tank cap and tank for leaks, holes, and dam-
aged threads.
4. Remove the fuel level sensor/fuel pick-up assembly
and inspect the fuel level sensor and fuel screen.
 NOTE: If the fuel level sensor has failed or may be
faulty, see Electric Fuel Pump/Fuel Level Sensor in
this section.
INSTALLING
1. Install the fuel level sensor/fuel pick-up assembly.
2. Place the gas tank into position in the frame; then
install the cap screws. Tighten securely.
3. Connect the gasline hose from the throttle body; then
connect the fuel gauge connector.
4. Fill the gas tank with gasoline.
5. Start the engine and inspect for leakage.
6. Install the rear fenders and rack (see Section 8); then
install the seat making sure it latches securely.

Oil Filter/Oil Pump

 NOTE: Whenever internal engine components wear
excessively or break and whenever oil is contami-
nated, the oil pump should be replaced. The oil pump
is not a serviceable component.
Testing Oil Pump
Pressure
 NOTE: The engine must be warmed up to the speci-
fied temperature for this test.
1. Connect the Tachometer to the engine or utilize the
LCD (if equipped).
2. Connect the Oil Pressure Test Kit to the oil pressure
test port (450 models) or the oil cooler to oil filter
line (1000 models).
Section
Table of Contents
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