Chrysler 20 and 30 HP Outboard Motors Service Manual OB 3435, Page 86Get this manual
Subsection
_ MAGNETO IGNITION SYSTEM
GENERAL
The informati on in this subsection deals ith troubleshooting the ignition system and replacement of the electrical components
A bright blue spark sh uld be evidentA weakyellowish or red spark indicates insufficient spark voltage 2If there is insufficient spark voltage check the following possible causes: APoor grounds Check grounds BDamaged or worn high tension lead Replace Malfunctioning stop switch Disconnect leads from stop switch and repeat testIf defective, replaceDPoints not adjusted properly Points gapped too wide allow insufficient time fo coil primary winding to develop maximum voltage Too small gapinsufficien time to dischargeAdjust points EPoints pitted or burned Replace and adjust
DESCRIPTION
The magneto ignition system consists of seven (7) major components: flywheelstator platethrottle cambreaker pointscondensercoils (two required), and spark plugs (two required)
TROUBLESHOOTI NG
GeneralA malfunction in the magneto ignition system will result in the engine missingsurging or not running at allTable 1These same symptoms can also be the result of insufficient, contaminatedor excessive fuelFirst determine hat the cause of the problem is not the fue system See the Troubleshooting Guide for the fue system Preliminary Tests1Check spark as fo ll ows: ARemove spark plug, attach lead wire and ground plug against cylinderBCrank engine to determine if there is sufficient spark to jump gap on pl ug