1996 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 100Get this manual
Flywheel Servicing
INote 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 problem
Removal
1To avoid accidental starting of engine while servicing, twist and remove all spark plug leads2Remove the remote starter or flywheel cover from the engine3Remove the flywheel nutUse flywheel holding tool as drawn on Page 3-6 and three PIN 309492 screws from OMC Universal Puller Set, PIN 378103, or other suitable tool to hold the flywheel