1990 Johnson Evinrude "ES" 9.9 thru 30 Service Manual, P/N 507871, Page 246Get this manual
Wear safety glasses for eye protectionDetent balls can pop out with great force
1421 18Apply OMC Needle Bearing Assembly Grease to detent ballsPlace the detent spring into the propeller shaft holePlace one detent ball on one end of the spring1431 19Slide OMC Shift Detent Sleeve, PIN 328081, over propeller shaftAlign groove in tool with remaining hole in propeller shaftPlace the second detent ball in tool groove over detent springWhile pressing detent ball down slightly, pull tool back until detent ball is engaged in propeller shaft hole
Install the propeller shaft and detent tool in gearcase: Propeller shaft must engage forward bearingTool ramps must engage clutch dog rampsHold tool firmly against clutch dogGently tap propeller shaft with rawhide mallet to seat detent assembly
21Remove detent tool