Spark plug gap for your Harley motorcycle

When gapping new spark plugs be sure to use the proper tool. Never use a coin or disc style tool which can damage the electrode, especially on Iridium plugs.

Most Harley models with electronic ignition call for a range of 0.38 to 0.42 (0.40 average) gap, but consult your owners manual for your specific model.

CV Performance carries a full line of spark plugs for Harley and Buell models.