Suzuki 50-85HP outboard motors Service Manual, Page 2Get this manual
Suzuki OT50, OT60OT65 (Prior to 1985)
LUBRICATION
The power head is lubricated by oil mixed with the fuelOn models with
out oil itiection! fuel:oH ratios should be 30:1 during break-in of new or WII two-stroke engine
OUTBOARD MOTOR
SPEED CONTROL LINKAGEThe carburetor throttle valves must be oorrectly 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 as outlined in the IGNI TION TIMING sectionDisconneet car buretor link SZl4-l1) and rotate speed control lever (L) toward maximum speed position until it con tacta maximum speed stopSet carburewr throttle plates completely open then vary the length of carburetor link (C) until ball joint connector will just at tachMove speed control lever to full retard positionClearance (A) at car buretor throttle shaft actuating levers should be 0.51.0 mm (0.020,0.040 inREED VALVESThe inlet reed valves (FigSZI43) are located on reed plate between inlet manifold and crankeaseThe reed petals should seat very lightly against the reed plate throughout their entire length with the least possible tension'rip of reed petal must not stand open more than 0.2 mm (0.008 infrom contact surfaceReed stop opening should be 7.68.0 mm (O.3().O.31 in on DT50 models and 7.557.95 mm (0.300.31 in on DT60 and DT65 modelsRenew reeds if petals are broken, cracked, warped, rusted or bentNever attempt bend reed petal or to straighten damaged reedNever install bent or damaged reedSeating surface of reed plate should be smooth