1994 Johnson/Evinrude "ER" 9.9 thru 30 outboards Service Manual, Page 116Get this manual
Flywheel Servicing In order to produce the voltage necessary to run an ignition system, the flywheel magnets must be of particular strengthWeak flywheel magnets can cause low ignition voltage, which could affect motor performanceWeak flywheel magnets can also cause low readings on ignition test equipment, such as the peak-reading voltmeter, which may cause unnecessary replacement of ignition componentsFlywheels rarely go bad and would only be replaced as last resort in solving an ignition problemRemoval
i twist and remove all spark plug leads
'" 1To avoid accidental starting of engine while servicing,
drawn on Page 3-6 and three PIN 307641 screws from OMC Universal Puller Set, PIN 378103, or other suitable tool to hold the flywheelf31 3Apply OMC Moly Lube to threads of pressing screw and center hole of crankshaft4Assemble the following components from OMC Universal Puller Set, PIN 378103: