Arctic Cat 2018 ZR 200 Service Manual page 33

3. Pull the choke cable knob out completely; then hold
the butterfly closed in the carburetor. Tighten the set
screw to 6 in.-lb.
ZR-169
4. Place the gasket, air cleaner assembly, and plate into
position on the carburetor; then secure with the
flanged nuts. Tighten to 96 in.-lb.
ZR-144
5. Secure the air cleaner cover to the air cleaner with
the screws. Tighten to 30-36 in.-lb.
ZR-143
6. Adjust the carburetor (see ADJUSTING sub-sec-
tion).
ADJUSTING
The carburetor has been calibrated for average riding
conditions; however, altitude, temperature, and general
wear may necessitate certain carburetor adjustments.
Since carburetor adjustments critically affect engine per-
formance, two external adjustments can be made on the
carburetor. These are the throttle stop screw and throttle
cable.
32
744-921Y
Throttle Stop Screw
This screw controls the seating position of the throttle
valve which in turn determines the proper idle speed.
Rotate the screw clockwise to increase engine idle speed
and counterclockwise to decrease engine idle speed.
Throttle Cable
The correct throttle cable adjustment is when (with the
engine OFF) the carburetor throttle is completely open
(against its limit) while the throttle lever lightly contacts
the handlebar grip. The throttle arm on the carburetor
should also contact the speed control screw when the
throttle lever is released.
1. If throttle cable free-play is incorrect, locate and
adjust the in-line throttle cable adjuster until free-
play is within specification.
ZR-167
! WARNING
Do not attempt to adjust the throttle cable with the
engine running. Personal injury could result.
2. Tighten the throttle cable jam nut against the
adjuster. Tighten securely.
! WARNING
DO NOT operate the snowmobile when any component
in the throttle system is damaged, frayed, kinked, worn,
or improperly adjusted. If the snowmobile is operated
when the throttle system is not functioning properly,
personal injury could result.