4.7
FUEL SYSTEM
4
9923983 - 2012-2013 RZR 170 Service Manual
© Copyright 2012 Polaris Sales Inc.
3.
Inspect the idle speed adjust screw tip for flat spots
and the pilot mixture screw tip for damage. If any
damage is present on either screw, it must be
replaced.
4.
Inspect the float bowl vent tube for cracks near the
bottom of the tube.
NOTE: A continuous fuel leak from the carburetor
drain hose can be a result of a cracked bowl vent
tube.
Float Height Adjustment
1.
Place the carburetor at a level position to remove
weight from float arm. In this position, the float tongue
will rest slightly outward.
2.
With the carburetor at rest and level, slightly tilt the
carburetor back. The float should 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.
IMPORTANT: When measuring the height, verify the
inlet needle valve spring is not compressed.
NOTE: If the float is past parallel with the mating
surface, the carburetor has likely been tilted back
too far and the float tongue is compressing the
needle valve pin.
3.
If adjustment is required, carefully bend the float
tongue up or down to achieve the proper float height.
Keihin Pilot Air Screw
Inspect
Inspect
Float Height:
Parallel to Gasket Surface ± 1mm
Float
Tongue
