Mercury - Ignition Trigger Assembly Electrical System Factory Finish 98450A10. Overview. There's a certain confidence that settles in when your outboard fires up cleanly, without hesitation. It's the kind of assurance you feel in your chest steady, familiar, and earned over countless hours on the water. When you know your ignition system is doing its job, you stop worrying about what's happening under the engine cover and start focusing on the ride ahead. That's the trust many boaters place in g