Routine maintenance for an outboard ignition system is fairly simple like changing spark plugs. It works as it should or it doesn't, occasionally you may experience a phantom problem. The outboard engine components that are being replaced or upgrading are broken into groups, the starter, the ignition assembly, ignition coils, spark plugs, spark plug wires. Each component is essential for the ignition system. Shop ProPride Marine for expert advice, thousands of products in stock, and same-day shipping!