Diamond Fire E3 spark plug
I've been thinking of trying out an E3 spark plug on my 66cc Flying Horse (China Girl). According to a cross reference I read on-line, the NGK B6HS and Champion L86C, the E3.32 would be the match. But, I can not find that anywhere in any stores.
Is there another E3 spark plug you would recommend for those who have used or using them?