1997 Johnson Evinrude "EU" 125C, 130, 200, 225, 250 90 LV Service Manual, P/N 507269, Page 127Get 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 would affect engine 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 componentsAn accurate test of alternator output can help determine the flywheel's conditionRefer to Running Test, Alternator Output, Section 7Flywheel Removal
& To avoid accidental starting of engine, twist and remove all
spark leads before beginning service
rn 1Remove aflywheel socketSnap-on A-144 fixture, or nut using equivalent, and F16 inrnpowerequipped beltpower steering, release the tension on 2If with the steering