2007-2008 Polaris IQ Snowmobiles Service Manual, Page 93Get this manual
Fuel Systems CARBURETOR ADJUSTMENT
Throttle Valve Synchronization
All throttle valve synchronization adjustments are made to the MAG throttle valveThe PTO throttle valve is non-adjustable and considered the base throttle valveThrottle valve synchronization can be performed with the carburetor rack installed or removed from the engine12345If running, turn off engineRemove the air boxRemove the carburetor coversHold the throttle bell crank wide open on the carburetorThe bottoms of each throttle valve should be flush with the top of the intake boresIf adjustment is required, hold the PTO carburetor flush with the top of intake boreTurn the throttle stop screw in or out to set the PTO throttle slide flush with the intake bore876Once the PTO carburetor slide is flush, loosen the Phillips head screw, located under the top cover on the MAG carburetorWhile 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 slideLock Screw