NGK Spark Plugs, Pre-Gapped?
Jun 24, 2010 | 07:18 AM
#21
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Joined: Jul 2006
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From: New Market, MD
WARNING
You MUST USE a WIRE GAPPING tool when gapping dual electrode spark plugs.
Using a flat feeler gauge does not work on dual electrode plugs, a feeler gauge aor a flat gapping gauge will over-gap a dual electrode plug.
You MUST USE a WIRE GAPPING tool when gapping dual electrode spark plugs.
Using a flat feeler gauge does not work on dual electrode plugs, a feeler gauge aor a flat gapping gauge will over-gap a dual electrode plug.
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