1993 Johnson Evinrude "ET" 90 degrees CV Service Manual, P/N 508285, Page 37Get this manual
Synchronization and Linkage Adjustments 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 range
Remove both remote control cables from the engine before performing the following adjustments
Timing Pointer
If the timing pointer or intake manifold has been disturbed, check the top dead center timing pointer alignment
'" 1To prevent accidental starting of the motor, disconnect
the spark plug leads and remove the spark plugs
rv clockwise direction until the Rotate the flywheel in 2Center the timer pointer cast-in TOC mark is approximately 1112 in (4 em) past the timing pointer
3Install OMC Piston Stop, PIN 384887, in No.1 spark plug hole and turn in center portion until it contacts the No.1 pistonLock the tool in place with ring