Arctic Cat 2018 ZR 200, Service Manual

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ZR-145
6. Slide the carburetor off the mounting studs. Account
for a gasket.
DISASSEMBLING
744-959A
1. Carefully remove the plastic cap from the idle fuel
adjuster screw (A); then rotate the screw clockwise
while noting the number of rotations (for assembling
purposes) until lightly seated. Remove the screw.
2. Remove the pilot jet (B) from the carburetor.
3. Remove the cap screw (C) securing the float cham-
ber to the carburetor; then remove the chamber and
account for the rubber gasket.
4. Remove the float pin (D) securing the float (E) to the
carburetor body; then remove the float and needle jet
assembly (F).
5. Remove the main jet (G) and the nozzle (H) from the
carburetor tower.
CLEANING
1. Place all metallic components in a wire basket and
submerge in carburetor cleaner.
2. Soak for approximately 30 minutes; then rinse with
fresh parts-cleaning solvent.
3. Wash all non-metallic components with soap and
water. Rinse thoroughly.
4. Dry all components with compressed air only mak-
ing sure all holes, orifices, and channels are unob-
structed.
5. Blow compressed air through all hoses to remove
any obstructions.
INSPECTING
1. Inspect the mixing body and jet orifices for cracks,
nicks, stripped threads, and any other imperfections
in the casting.
2. Inspect the float for perforations or damage.
3. Inspect the gaskets for distortion, tears, or noticeable
damage.
4. When applicable, inspect the idle fuel adjuster screw,
needle jet assembly, and pilot jet for wear, damage,
or distortion.
5. Inspect the nozzle and main jet for obstructions or
damage.
6. Inspect the carburetor insulator for damage, cracks,
and tightness.
7. Place the carburetor insulator on a surface plate cov-
ered with #400 grit wet-or-dry sandpaper. Move the
insulator over the surface plate using a figure-eight
motion. The motion should produce an even wear
pattern over the entire sealing area.
CAUTION
Do not force the idle fuel adjuster screw when rotating it
clockwise; damage to the screw taper and carburetor
orifice may result.
CAUTION
DO NOT place any non-metallic components in parts-
cleaning solvent or carburetor cleaner because damage
or deterioration will result.
! WARNING
Always wear safety glasses when drying components
with compressed air.
CAUTION
DO NOT use wire or small drill bits to clean carburetor
orifices, holes, or channels. Distorted or damaged ori-
fices, holes, or channels can result in poor carburetor
operation.
CAUTION
An air leak between the carburetor and engine will
cause a lean condition and poor engine performance.
CAUTION
Water or parts-cleaning solvent must be used in con-
junction with the wet-or-dry sandpaper or damage to
the sealing surfaces may result.