Suzuki 50-85HP outboard motors Service Manual, Page 24Get this manual
SERVICE MANUAL justment screws (I-FigSZ16-4) located on throttle levers of top and bottom caburetorsEnsure that all throttle valves are completely closed, then retighten screws (I)SPEED CONTROL UNKAGEThe carburetor throttle valves must be correctly synchronized to open as the ignition is advanced to obtain optimum performanceTo adjust the speed control linkage, it is necessary to first check, and adjust if required, the ignition maximum advance (models prior to 1988) as outlined in the IGNITION TIMING sectionDisconnect carburetor link (C-FigsSZ16-3 or SZI6-4) and rotate speed control lever (L) toward maximum speed position until lever (L) contacts maximum speed stop on crankcao;eSet carburetor throttle valves completely open, then vary the length of carburetor link (C) until ball joint connector will just attachMove speed control lever to full retard positionClearance (A-FigSZI6-3) at carburetor throttle shaft actuating levers should be 0-1 mm (0-0.39 inREED VALVESThe intake reed valves are located on reed plate between intake manifold and crankcaseThe reed petals should seat very lightly against the reed plate throughout their entire length with the least possible tensionTip of reed petal must not stand open more than 0.20 mm (0.008 in from contact surfaceReed stop opening should be 7.6-7.9 mm (0.30-0.31 inRenew reeds if petals are broken, cracked, warped, rusted or bentNever