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crwdns2944351:0crwdnd2944351:0Harley-Davidson Sportster Evolution Spark Plugs Replacementcrwdnd2944351:0crwdne2944351:0

crwdns2933797:0Eric Essencrwdnd2933797:0crwdne2933797:0

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crwdns2933801:0crwdne2933801:0
Introduction
This guide will show how to remove the old spark plugs, check the new spark plugs for defectsinstallation, prepare the spark plugs for installation, and finally how to reinstall the new spark plugs.