2013 600 IQ Racer Service Manual 9923892, Page 50Get this manual
Fuel Systems 6Once the PTO carburetor slide is flush, loosen the Phillips head screw, located under the top cover on the MAG carburetor7While 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
Sync Nut