honda elite sb50p to af18 engine swap electrical help
Posted: Sun Oct 11, 2026 2:18 pm
hello everyone i am currently attempting to engine swap my honda elite e with an af18 engine. i have the engine mounted and everything wired in but the wiring is giving me a headache. when looking at the wiring diagrams between the sb50 and af18 everything lines up except i have an extra black red wire coming from the scooter harness. my understanding is this was the stator wire coming from the old engine that my new engine doesn't have meaning i need a dc cdi. i have successfully wired in a generic 5pin dc cdi getting the power from the 12v scooter harness wire. this gives me a spark but no ignition so i assume my problem now is timing...? but not really sure where to go from here.... any help would be greatly appreciated! thanks!