Hot Selling DS1 1 Advanced Electronic Ignition System For CB350F 1972 1974 CB400F 1975 1977 Motorcycles DS1 1 Advanced El This electronic ignition system is designed for use with CB350F models from 1972 to 1974 and CB400F models from 1975 to 1977.It replaces the points-based ignition system with a solid-state electronic unit to improve spark consistency and overall engine performance.The system includes ignition control unit, pickup coil, and necessary mounting hardware.Installation is straightforward, connecting directly to the existing wiring harness and ignition coil.It supports accurate timing control and reduces maintenance needs by eliminating mechanical wear components.This unit enhances starting and helps maintain steady engine under various conditions.This is a replacement item from an aftermarket supplier.Brand names are cited solely to demonstrate device compatibility.