Vintage Motorcycle Ignition Coils, Spark Plugs & Plug Caps

Shop vintage motorcycle ignition coils, spark plugs, plug caps, and plug wires for classic Honda, Yamaha, Suzuki, and Kawasaki motorcycles. This collection includes OEM-style replacement ignition coils, high-output performance coils, resistor and non-resistor plug caps, copper-core plug wire, and direct-fit 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 plug wires, or worn spark plugs can cause hard starting, misfires, rough idle, poor fuel combustion, and reduced power. Replacing aging spark components restores proper voltage output, consistent spark intensity, and dependable combustion across the RPM range.

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

For ignition timing 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, refreshing aging ignition components, or upgrading for stronger spark performance, Old Bike Barn supplies the ignition parts needed to keep your classic Japanese motorcycle running strong.

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