Polaris Outlaw 500, Service Manual

Page: 106 / 202

4.11
FUEL SYSTEM / CARBURETION
4
Carburetor Assembly
Inspect the diaphragm (A) for holes, deterioration, or damage.
Make sure the diaphragm is pliable but not swollen. The
diaphragm should fit properly in the carburetor body. Replace
diaphragm assembly if diaphragm is damaged.
1.
Replace parts in proper order. The spring seat (B) is
stepped and must be placed on TOP of “E” Clip (C).
Spacer washer (D) must be installed below the E–Clip.
Refer to parts manual for more information.
2. Be sure the tab (E) on outer edge of diaphragm is positioned
properly in the carburetor body.
3.
Install the pilot mixture screw, spring, washer, and O–ring
as an assembly. Lubricate the O–Ring with oil or light
grease before installation.
IMPORTANT: Do not damage the O–ring during
installation. Turn the screw in until it lightly contacts
the seat. Then back it out the specified number of
turns.
NOTE: The final pilot (idle) mixture must be adjusted
with the engine running. Refer to Chapter 2 for
procedure.
Float Height Adjustment
1. Place the throttle side of the carburetor on a level surface
to remove weight from float arm. In this position, the float
tongue will rest slightly outward.
2. With the carburetor still resting on the level surface, use one
hand to slightly tilt the carburetor back. The float will then
fall into the correct position, with the float tongue resting
lightly on the inlet needle valve pin without compressing
the spring. The bottom of the float should be parallel with
the float bowl mating surface.
A
B
C
D
E
Pilot Screw Base Setting
(Set at Factory)
Factory Specification: 2.5 Turns Out
Float Outward
Carburetor Level
Float parallel with float
bowl mating surface
13-14 mm