Bob teaches you how to service the spark plugs on your Harley’s engine. Although you can clean and service your old spark plugs, Bob recommends just buying new ones because they are fairly inexpensive. You should purchase gapped, Harley-only spark plugs which usually come with a gap of 38-43,000th of an inch. After applying some anti-seize to the threads of the new plugs, you can thread them into the cylinder by hand and tighten them with a torque wrench and you’ll be good to go.Watch Now >>
Here’s a great upgrade or fix. Coil, spark plugs and plug wires for your Harley-Davidson. Videos on Removal and Replacement of Charging System: Harley Davidson Charging System Removal Harley Stator and Rotor Shell Replacement Harley Voltage Regulator ReplacementWatch Now >>
No spark, no fire. That is the name of the game when it comes to Harley Davidson spark plugs. Follow along with this critical video on the importance of maintaining healthy spark plugs. Bob and Mark review the simple steps of Harley Davidson spark plugs service that are some of the most important we can perform during a Harley service:
- Wear safety glasses and use air to blow away debris.
- When removing spark plug wires, note location.
- Remove old plugs.
- Gap and prep new plugs with high heat copper anti-seize.
- Install new plus and do not over tighten.
- Check all your connections and clean as needed.