A properly functioning stator is critical to reliable spark production, and this assembly is built to deliver steady voltage under demanding marine operating conditions. The design priorities are especially important on Johnson/Evinrude applications where ignition stability depends on clean stator output.

Stator Design

• Heavy-duty winding insulation helps prevent shorting between coil layers during extended operation.
• Laminated core sections help concentrate magnetic flux from the flywheel magnets for reliable electrical production.
• The coil assembly is built to resist breakdown from heat, oil mist, humidity, and repeated thermal expansion.
• Epoxy encapsulation helps shield internal windings from moisture, vibration, and corrosion.

Ignition System Benefits

• Helps reduce high-RPM breakup caused by weak or unstable stator output.
• Helps correct intermittent spark loss caused by heat-sensitive stator windings.
• Provides a dependable electrical source for the ignition system under real-world boating conditions.
• Designed to maintain stable voltage as engine load and RPM change.

Failure Symptoms to Check

• Charging output problems where the stator also supports charging circuits
• Hard starting
• Random cylinder drop-out
• High-rpm breakup
• Unstable ignition output

Because stator failure can mimic other ignition problems, testing the trigger, coils, switch box or power pack, and related grounds is recommended.