A properly functioning stator is critical to reliable spark production, and this assembly is built to deliver steady voltage under demanding marine operating conditions. This style of stator is also associated with a 35-amp charging configuration, so clean electrical output and connector integrity are especially important. The design priorities are especially important on Johnson/Evinrude applications where ignition stability depends on clean stator output.

Stator Design

• Precision-wound copper coils are used to promote efficient voltage generation and stable output.
• Heavy-duty winding insulation helps prevent shorting between coil layers during extended operation.
• The coil assembly is built to resist breakdown from heat, oil mist, humidity, and repeated thermal expansion.
• Sealed construction helps reduce moisture intrusion that can lead to weak spark or no-spark conditions.

Ignition System Benefits

• Helps restore ignition charge voltage for strong, repeatable spark output.
• Provides a dependable electrical source for the ignition system under real-world boating conditions.
• Helps correct intermittent spark loss caused by heat-sensitive stator windings.
• Designed for use in wet, hot, and vibration-heavy marine engine compartments.

Common Symptoms of Stator Failure

• Random cylinder drop-out
• Hard starting
• Spark loss after warm-up
• Weak or intermittent spark
• Charging output problems where the stator also supports charging circuits

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