1990 Johnson Evinrude "ES" Colt/Junior thru 8 Service Manual, P/N 507870, Page 46Get this manual
Synchronization and Linkage djustments Colt, unior thru Deluxe It js jmportant that this step-by-step procedure be followed in sequence and be performed exactly as written to ensure consistent engine idling and smooth operation throughout the RPM rangeCam Follower Pickup Point Colt, Junior modelsRemove the starter housing and the fuel tank support bracketUltra 4, ExcelRemove port and starboard engine covers3, 4BRHRemove engine coversr:Jl 1Connect throttle shaft amplifier to the carburetor throttle shaft2Advance the throttle to the pickup position Models with one mark on cam: center of roller in line with mark Models with two marks on cam: center of roller between two marks
L!:J Driver PIN 327622 until the throttle valve is closed comMaximum Spark Advance
Back out cam follower adjustment screw with OMC Ballhex
pletelyThen turn in adjustment .screw until the throttle shaft amplifier begins to move