1997 Johnson Evinrude "EU" 40 thru 55 2-Cylinder Service Manual, P/N 507265, Page 197Get this manual
Midsection Adjustments40RP, 45, 55 Steering Friction Adjustment
Adjust the steering friction with motor mounted to boat by loosening or tightening the adjustment screwAdjust the steering friction until slight drag is felt when turning
& The steering friction should be adjusted so that stable boat
operation is maintained with minimum of operator effortDo not overtighten to allow for "hands off" steering which could result in loss of controlIdle Speed Adjustment The idle speed adjusting knob is located on the steering handleTurning clockwise on the knob increases idle speed, turning counterclockwise decreases idle speedMake certain that throttle grip is in SLOW position and the motor is at normal operating temperature before making the idle speed adjustment