NGK Spark Plug for Harley-Davidson XL | 79-85

These are the NGK Spark Plugs for your Harley-Davidson XL | 79-85

Plug Gap Setting

0.04

Standard NGK Spark Plug

BPR6HS-10

Premium NGK Spark Plug

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How to Check & Set Propper Gap for Your XL | 79-85 NGK Spark Plug.

Question:
What is the correct spark plug gap for a Harley-Davidson XL | 79-85?

Answer:
0.04

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