Chrysler 6, 7.5, 180 Sailor Outboard Motors Service Manual, OB 3330, Page 36Get this manual
NOTE If throttle does not close, either the throttle return spring is too weak and should be replaced or the throttle disc or linkage is binding1Advance throttle control until edge of follower is lined up with mark on stator ringAt this point the throttle should begin to open Figure 132If throttle does not begin to move at this point, turn adjusting screw in or out as required ADJUSTING SCREW
Figure 14Idle Speed Adjustment Screw
Idle Stop AdjustmentAdjust setting of idle stop screw as necessary until engine idles at 600-750 R.P.Min Forward gearFigure 15FOLLOWER
Figure 13Adjusting Throttle Follower Arm
Idle AdjustmentTo adjust the idle speed, proceed as follows :
CAUTION
When adjusting the idle needle, turn carefully and gentlyDo not force needle into seat1Turn idle needle clockwise until it seats in the carburetor2Open idle needle one (1) turn counterclockwise 3Start motor and allow to warm up to operating temperature Turn throttle to "SHIFT" position Shift motor into "FORWARD" gear and close throttle (turn clockwise) to the lowest reliable throttle setting 4Slowly turn idle needle counterclockwise until motor speed decreases and operation becomes rough due to overrich mixture (Note adjustment position 5Slowly turn idle needle clockwise, motor operation will become smooth and speed will increase Continue turning adjustment clockwise until motor speed slows or misfires from the too lean mixture 6Turn idle screw to mid point between settings noted in steps and 535