How to replace spark plugs on Harley Davidson touring?
Refer to your service manual or the link at the bottom (Related Discussions) for procedures. Assorted hand tools to remove seat and gas tank if needed. Firmly grasp the rubber boot around each spark plug and pull the wire away from the plug.
What’s the best way to replace spark plugs?
Using a wire-type spark plug gap tool, measure the gap on the new spark plugs. There should be a very slight drag on the gauge when passing a 0.040″ (0.038″-0.043″) gauge between the center and outer electrode. Bend the outside electrode with the tool to obtain proper gap.
What should the gap be on spark plugs?
Using a wire-type spark plug gap tool, measure the gap on the new spark plugs. There should be a very slight drag on the gauge when passing a 0.040″ (0.038″-0.043″) gauge between the center and outer electrode.
How does a spark plug work on a bike?
Spark plugs provide the ignition that burns the gasoline that makes your bike go. They have to operate under very severe conditions of temperature and pressure.
How do you replace spark plugs on a Harley Davidson?
Check the condition of the spark plug threads in the cylinder heads. If necessary, soften deposits with penetrating oil or clean out with a spark plug thread chaser. Apply a very light coating of anti-seize to the spark plug threads. Install the plugs finger-tight, and then torque to 12 to 18 foot pounds.
What kind of plugs do I need for a Harley Davidson?
Here’s a great upgrade or fix. Coil, spark plugs and plug wires for your Harley-Davidson.
How to know if spark plugs need to be replaced?
Clean the area around the spark plugs to avoid dirt getting into the motor. Remove spark plugs with a 5/8″ spark plug socket and ratchet. Examine each plug center electrode tip when removed. They should be light grey, or tan. Black deposits indicate too rich of a mixture, a weak ignition, or oil burning and should be investigate further.
Using a wire-type spark plug gap tool, measure the gap on the new spark plugs. There should be a very slight drag on the gauge when passing a 0.040″ (0.038″-0.043″) gauge between the center and outer electrode.