Fuel Pump Removal/Installation; Altitude Compensator - Arctic Cat Cougar Service Manual

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a. Carburetor tuning is described in Chapter
Four.
b. When inserting the throttle valve into the
carburetor, align the groove in the throttle
valve with the pin in the carburetor bore
while also aligning the jet needle with the
opening of the needle jet.
FUEL PUMP
Removal/Installation
Different types of fuel pumps have been used,
but all are basically the same. Refer to Figure 30
for the routing of the hoses to the crankcase (A,
Figure 30), fuel inlet line from the tank (B,
Figure 30) and fuel output (pressure) lines to the
carburetors (C, Figure 30). The actual location
of the pump may be different than that shown in
either Figure 30 or 31.
1. Open the hood.
2. Label the hoses at the fuel pump (Figure 30).
3. Loosen the hose clamps, then detach the
hoses from the pump. Plug the hoses to prevent
fuel leakage or contamination.
4. Remove the screws holding the fuel pump to
the air silencer frame and remove the fuel pump.
5. Replace the hose clamps as necessary.
6. Installation is the reverse of these steps. Re-
connect the hoses according to the identification
marks made before disassembly.
Inspection
1. Plug the four pump body fuel fittings and
clean the pump in solvent. Thoroughly dry.
2. Test the pump outlet check valve by sucking
and blowing through one of the outlet openings
while blocking the other outlet opening(s). See
Figure 30 for typical positiQns of the outlet to
the carburetors. You should be able to draw air
though the valve, but not blow air through it.
3. Test the pump inlet check valve by sucking
and blowing through the inlet opening. You
CHAPTER
SIX
should be able to blow through the valve, but not
draw air through it.
4. Install a new pump if damaged. Repair parts
are not available for the fuel pumps.
ALTITUDE COMPENSATOR
Later Powder Extreme and Powder Special
models are equipped with an altitude compensa.:.