Re: NGK Plug cross over

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March 20, 2017 at 2:08 pm #54594
JOSEPH BRINCAT
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    BM7A seem to be good in my Zephers. These NGK plugs are perfect for applications where the plus(s) are enclosed in a metal shroud as in the Zephyr because of two features. One, the porcelain body (outer) is shorter than the Champion, less likely to come in close proximity to the metal shroud and , two, the terminal is threaded to accept the old style ring terminal. Just be aware that the stud is metric 4mm- .7 so your original nuts will not fit.

    Joe B