2005 Kawasaki KAF400 Mule 600 and Mule 610 4x4 Service Manual, Page 66Get this manual
3-10 FUEL SYSTEM Governor Link Mechanism
screw [A] until it Screw in the accel lever stopper to the accel leverkeeps clearance by mm (0.04 in [B] [C] at idle speed positionIdle Speed about 100 250 rmin (rpm)
the Tightencase,throttle cable mounting nuts [D]In this do not extend the cable too much