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Nitrous Oxide System

In order to tune nitrous, you will need to learn how to read plugs. The plug above shows an overly rich condition, but that is better than overly lean. A lean plug will have a bluish tint to the strap and may have speckles on the porcelain. If the plugs are lean you may also see that the center electrode is rounded off or melted. As a rule, always check all the plugs and set plug gap between .032 and .035 inch.
Nitrous Oxide System - Why Nitrous?

 In order to tune nitrous, you will need to learn how to read plugs. The plug above shows an overly rich condition, but that is better than overly lean. A lean plug will have a bluish tint to the strap and may have speckles on the porcelain. If the plugs are lean you may also see that the center electrode is rounded off or melted. As a rule, always check all the plugs and set plug gap between .032 and .035 inch.  View Related Article

 

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