Float Heigh Check And Adjustment; Jet Needleffhrottle Valve Removal/Installation - Arctic Cat Cougar Service Manual

FUEL SYSTEM-CARBURETED MODELS
tortion could also cause a lean mixture
that may result in major engine damage.
8. Check the movement of the float arm on the
pivot pin. It must move freely without binding.
9. 0-ring seals tend to become hardened after
prolonged use and heat and therefore lose their
ability to seal properly. Inspect all 0-rings and
replace if necessary.
10. Check the floats (Figure 23) for fuel satura-
tion, deterioration or excessive wear where it
contacts the float arm. If the float is in good
condition, check it for leakage by filling the float
bowl with water and pushing the floats down.
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FLOAT
HEIGHT
Throttle
valve
Clip
Jet needle
Needle jet
Main jet
219
There should be no signs of bubbles. Replace the
floats if necessary.
Float Height
Check and Adjustment
1. Remove the float bowl as described in this
chapter.
2. Remove the float bowl gasket.
3. Invert the carburetor. Allow the float arm to
contact the fuel inlet valve, but do not compress
the spring-loaded plunger located in the valve.
4. Measure the distance from the float arm to the
float bowl gasket surface (Figure 25). Refer to
Table 1 for float height.
5. If the float height is incorrect, remove the
float pin and float arm (28 and 29, Figure 10).
Bend tang on the end of the arm to adjust.
6. Reinstall float arm and pin. Recheck the ad-
justment.
7. Install float bowl as described in this chapter.
Jet Needleffhrottle Valve
Removal/Installation
A typical jet needle/throttle valve assembly is
shown in Figure 26.
1. Tum the carburetor cap (A, Figure 9) coun-
terclockwise to loosen, then withdraw the throt-
tle slide from the carburetor.
2. Push the throttle valve up against the spring.
Then detach the cable from the throttle valve.
NOTE
The magnet (Figure 27) is used to trig-
ger the electrical switch (Figure 28) lo-
cated on the side of the carburetor.
3. Remove the screw (Figure 29) attaching the
magnet block to the throttle valve and remove the
magnet block.
4. Remove the jet needle, E-clip and washers ( 4,
5, 6 and 7, Figure 10).
5. Installation is the reverse ofthese steps. Note
the following: