Vintage Motorcycle Ignition Coils, Spark Plugs & Plug Caps

Shop vintage motorcycle ignition coils, spark plugs, plug caps, and spark plug wires for classic Honda, Yamaha, Suzuki, and Kawasaki motorcycles. This collection includes OEM-style replacement motorcycle ignition coils, high-output performance coils, resistor and non-resistor motorcycle plug caps, copper-core motorcycle spark plug wires, and direct-fit motorcycle spark plugs designed for motorcycles from the 1960s through the 1990s.

Strong, consistent spark delivery is essential for smooth starting, clean throttle response, and reliable engine performance. Weak ignition coils, deteriorated spark plug wires, or worn spark plugs can cause hard starting, misfires, rough idle, poor fuel combustion, and reduced power. Replacing aging motorcycle ignition parts restores proper voltage output, consistent spark intensity, and dependable combustion across the entire RPM range.

Our inventory includes model-specific motorcycle ignition coil replacements, universal and direct-fit spark plug wires, 90-degree and straight motorcycle plug caps, resistor caps, and recommended spark plug options selected for proper heat range and compatibility with vintage carbureted engines and traditional ignition systems.

For ignition timing and electrical control components such as contact points, spark advancers, CDI units, pickup coils, and ignition switches, explore our Ignition Systems & Ignition Switches collection to complete your ignition service from timing control to spark delivery.

Whether you're troubleshooting a no-spark condition, replacing worn ignition components, or upgrading for stronger spark performance, Old Bike Barn supplies the ignition parts needed to keep your classic Japanese motorcycle starting easily and running strong.

Old Bike Barn specializes in vintage Japanese motorcycle parts, offering trusted OEM and quality aftermarket components curated by experienced riders who restore, maintain, and ride classic machines.