Installing Harley-Davidson Sportster Evolution Spark Plugs
Removing and installing the front and rear spark plugs.
- Author: Eric Essen
- Time required: 30 minutes
- Difficulty: Moderate
This guide will show how to remove the old spark plugs, check the new spark plugs for installation, prepare the spark plugs for installation, and reinstall the new spark plugs.
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Spark Plugs
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The spark plugs are easy to spot on the left side of the motorcycle.
The procedure for removing the spark plugs is the same for both the front and back cylinder, and either spark plug can be replaced first. This guide will show how to remove and install the spark plug in the rear cylinder.
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