Honda BF35A-BF45A Outboard Motors Shop Manual., Page 316Get this manual
7) After adjustment, move the throttle cam to the fully open position and be sure that there is clearance of mm (0.04 in) or less between the carburetor throttle lever and stopper on the No3 carburetor8) If the clearance is more than mm (0.04 in), readjust by turning the throttle rod pivot9) Adjust the throttle cable, then connect the throttle
cable to the throttle arm
Throttle Cable Length Adjustment
Adjust the throttle cable length after adjusting the throttle rod length1) Turn the throttle grip to the fully open position and check that the throttle arm contacts the fully open stopper