Chrysler 20 and 30 HP Outboard Motors Service Manual OB 3435, Page 63Get this manual
switch grounds the primary ignition circuit and stops the motorC-O Ignition SystemThe rotation of the generating magnets (located in the flywheel) creates rotating magnetic field which cuts through the windings of the C-D stator and generates 225 volts AC This voltage is fed to the C-D modulewhere it is converted to 225 volts D-C by the full wave rectifierThe 225 volts D.Cis then placed on the storage capacitorAs the timing magnets rotatethey build up magnetic field at the trigger coil for the No cylinder When the flywheel reaches the proper positionthe magnetic field collapses and induces volt maximum pulse in the No.1 trigger coilThis volt pulse causes the electronic switch to close whichin turn, allows the 225 volts on the capacitor
to discharge into the ignition coil The coil steps up the 225 volts to approximately 25,000 to 32 ,000 voltsThis voltage is fed to the spark plug where it ignites the fuel charge Depressing the stop switch (to stop engine) shorts the C-D module to ground Figure 1Generating SystemIn this system 12 volt battery is used to provide starting and illumination (boat lighting or navigational aids) In order to maintain chargethe battery requires direct current