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ben2go · 10-24-2016, 08:34 AM

What you have there is a new cooler running spark plug.The firing tip doesn't project out as far as the old hot plug.It should work better for your aircooled Hawk.Here's some info that may help.

https://www.ngksparkplugs.com/about-...rk-plug-basics

10-24-2016, 08:34 AM	#31
ben2go Join Date: Jun 2011 Posts: 1,335	What you have there is a new cooler running spark plug.The firing tip doesn't project out as far as the old hot plug.It should work better for your aircooled Hawk.Here's some info that may help. https://www.ngksparkplugs.com/about-...rk-plug-basics
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