These are the NGK Spark Plugs for your Harley-Davidson FLSTC Softail Heritage Classic | 07-10
How to Check & Set Propper Gap for Your FLSTC Softail Heritage Classic | 07-10 NGK Spark Plug.
Question:
What is the correct spark plug gap for a Harley-Davidson FLSTC Softail Heritage Classic | 07-10?
Answer:
0.04
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