1990 Johnson Evinrude "ES" Colt/Junior thru 8 Service Manual, P/N 507870, Page 49Get this manual
Idle Timing _._ f5l 1As you face the steering handle, turn the idle speed adjustment knob counterclockwise to minimum slow speed position f61 2Remove the screw retaining the throttle cable bracket to the powerheadBe sure not to lose the washer under the bracket3To ensure the engine will start, make the following initial carburetor adjustments: Turn in the low speed adjustment needle until it seats lightly; then back out 2112 turns Loosen the throttle cracking screw Turn in the screw four turns after it contacts the throttle valve link 19l 4GQl