2007 Johnson 2 HP 4-Stroke Service Manual, Page 137Get this manual
GEARCASE GEAR SHIMMING AND ADJUSTMENT A shim adjustment may be necessary in order to obtain the optimum tooth contact patternCorrection measures: Increase the thickness of the forward gear shim Slightly decrease the pinion gear shim thickness
Approx13 of tooth width Approx1 mm
IMPORTANT: Do not set tooth contact in the
bottom side toe contact positionChipping of the pinion gear may result
Propeller Shaft Thrust Play
TOE Convex side
Optimum Tooth Contact 006275
After adjusting all gear positions, measure the propeller shaft thrust playPropeller shaft thrust play: 0.008 to 0.016 in(0.20 to 0.40 mm)
IMPORTANT: The backlash of the gear should
be checked when increasing or decreasing the thickness of the shim to adjust tooth contactExample