1991 Johnson/Evinrude EI Outboards 2.3 thru 8 Service Manual, Page 46Get this manual
Synchronization and Linkage Adjustments Deluxe It is important 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 f11 1Connect throttle shaft amplifiersuch as the one shown,
L!J to the carburetor throttle shaft
r:;l 2Advance the throttle until the tip of amplifier begins to
moveAt this point, the roller should align with single mark on camr:jl 3Back out cam follower adjustment screw with OMC Ballhex Driver PIN 327622 until the throttle valve is closed completelyThen advance the screw until the throttle shaft just begins to rotateMaximum Spark Advance Adjustment No maximum spark advance adjustment is necessaryCorrect wire positioning in the connectors is all that is required to maintain proper ignition timingDR2145