Replace the Motorcycle Spark Plugs

Tools needed: Spark plug socket, ratchet, torque wrench, gap gauge. Safety: Ensure the engine is completely cool before starting. Steps: 1. Remove the spark plug wires or ignition coils. 2. Clean the area around the plug base to prevent debris from entering the cylinder. 3. Unscrew the old plugs. 4. Set the gap on the new plugs according to the service manual. 5. Thread the new plugs by hand, then tighten to the manufacturer's torque specification. 6. Reconnect coils. Verification: Start the engine and ensure it idles smoothly without misfiring.