Throttle Body Assembly Service - Arctic Cat Cougar Service Manual

FUEL SYSTEM-FUEL-INJECTED MODELS
6. Make sure the bore in the fuel rail is clean and
smooth.
7. Coat the 0-rings with a light coat of oil before
inserting the nozzles into the fuel rail.
8. Carefully slide the injector into its bore with
the electrical connection toward the front.
9. Install the retainer and tighten the two screws
securely.
10. Attach the wiring harness electrical connec-
tor to the terminals of the injector.
11. Connect the fuel delivery hose to the inlet
fitting as follows:
a. Push the fuel delivery hose onto the inlet
fitting until the end of the hose is 20-30 mm
(0.8-1.2 in.) past the end of the fitting.
b. The position the hose clamp should be 3-7
mm (0.12-0.28 in.) from the end of the hose.
c. Tighten the clamp securely.
12. Purge air from the fuel system as described
in this chapter.
WARNING
Check for fuel system leaks before start-
ing engine. Any leakage is hazardous.
Throttle Body Assembly
RemovaUinstallation
Individual parts of the throttle body assembly
are not available separately. Be sure that all seals
are in good condition when assembling.
CAUTION
Most commercial carburetor cleaners
will damage rubber 0-rings, seals and
plastic parts. Be sure all parts that could
be damaged by the cleaner are removed
before using a harsh cleaner.
251
1. If equipped with a battery, detach the ground
cable from the negative terminal of the battery.
CAUTION
Clean dirt and foreign matter from the
area around the fuel injectors and fuel
rail prior to removing the fuel injectors.
Any dirt or foreign matter that falls into
the fuel or the injector openings in the
throttle body may cause engine damage.
WARNING
Be prepared to plug fuel lines before
gasoline begins to leak from detached
hoses. The gasoline may still be under
pressure. Gasoline is afire hazard.
2. Detach hoses from the inlet fitting (7,
Figure
27) and the vent and return fittings of the regu-
lator (2,
Figure
27).
3. Loosen the clamp securing the engine coolant
hose on the PTO side of the throttle body. Detach
the hose. Plug both openings to reduce the loss
of coolant.
4. Mark the original location, then detach elec-
trical connectors from each injector, the throttle
position sensor and the coolant temperature sen-
sor.
5. Loosen the clamp nuts (Figure 25 or Figure
26) attaching the cable housing to the bracket and
detach the cable from the throttle lever.
6. Loosen the clamps securing the throttle body
mounting flanges.
7. Lift the throttle body assembly from the
mounting flanges.
NOTE
The adjustment (Figure 30) is used to
synchronize the opening of the two throt-
tle valves. Both valves must open and
close at exactly the same time. This ad-
justment should not be required, but the