Suzuki 50-85HP outboard motors Service Manual, Page 26Get this manual
SERVICE MANUAL rpm, The idle speed switch is the only provision for adjusting idle speed on models so equippedNote that carburetor throttle valves must be fully closed for idle h'Peed switch to function, Full advance timing on models after 1987 should be 18 degrees mDC at full throttle and is controlled automatically by the Ie ignition systemOn models prior to 1988, initial setting
of ignition timing can be accomplished as follows: Set throttle at full advance