4.12
Fuel System
9923396 - 2007-2012 EDGE/Widetrak LX Service Manual
©2011 Polaris Sales Inc.
MIKUNI TM CARBURETOR
ADJUSTMENT
Throttle Valve Synchronization
All throttle valve synchronization adjustments are made to
the MAG throttle valve. The PTO throttle valve is non-
adjustable and considered the base throttle valve.
Throttle valve synchronization can be performed with the
carburetor rack installed or removed from the engine.
1. If running, turn off engine. Remove the air box.
2. Remove the carburetor covers.
3. Hold the throttle bell crank wide open on the
carburetor.
4. The bottoms of each throttle valve should be flush with
the top of the intake bores.
5. If adjustment is required, hold the PTO carburetor
flush with the top of intake bore. Turn the throttle stop
screw in or out to set the PTO throttle slide flush with
the intake bore.
6. Once the PTO carburetor slide is flush, loosen the
Phillips head screw, located under the top cover on
the MAG carburetor.
7. While holding the PTO carburetor slide flush to the top
of the carburetor, rotate the synchronization nut
clockwise to raise the slide and counterclockwise to
lower the slide.
8. Adjust the synchronization nut until it is even with the
PTO slide.
9. Once this is flush, lock the locking screw.
10. Replace the carburetor covers.
11. If removed, reinstall the fuel, vent, throttle, and choke
hose and cable connections.
12. Verify and set throttle cable free play.
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