1998 Johnson Evinrude "EC" 40 thru 55 2-Cylinder Service Manual, P/N 520206, Page 50Get this manual
Throttle Control Rod 1With the engine not running, ensure that the idle speed screw is against its stop and both carburetor throttle plates are closed[] 2Rotate the thumb wheel counterclockwise on the throttle control rod to obtain 0.020 in(0,5 mm) gap between the throttle cam and cam follower3Tighten the jam nut against throttle cam yoke and verify gapWide-Open Throttle Stop 1With the engine not running, advance the throttle lever to wide-open position 2The carburetor throttle shaft pins must be exactly vertical at wide-open throttle
[] 3Loosen the locknut and adjust the W.O.Tstop screw to adjust pin orientation to exactly vertical4Tighten the locknut and recheck pin orientation at wide-open throttleThrottle Cable Installation ]1Turn idle speed adjustment knob fully counterclockwise to minimum SLOW position2Loosen throttle cable bracket jam nut