Thursday, 22 September 2022

Unique problem of the electrode shape of the NGK DCPR7EA-9 premature spark

A very unique problem of the NGK DCPR7EA-9 spark plug which manufactured locally. Because of the shape of the negative electrode curve it causes premature sparks before it reaches near the tips of the positive electrode. Should the negative electrode curve more rounder like the one made in Japan this problem should not arise





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