2004 Polaris Touring Service Manual, Page 139Get this manual
FUEL SYSTEM Throttle Synchronization ProcedureMikuni TM Flatslide Carburetors
Mikuni TM style carburetors are synchronized at wide open throttle without the engine runningThe MAG side carb is the adjusting carb, the PTO side carburetor on twins have non-adjustable set screw on the throttle shaftThis carburetor is what the other carb is synchronized to1Remove the airbox 2Remove top caps on all carburetors 3Hold throttle wide open and view position of carburetor slide on base carburetor