Re: harley plugs
I use a B8ES and any brand 3/4 reach plug in the same heat range. I have used Champion, Ac and Nipondenso in my Harley and G9 Yamaha's with excellent results. I am using a B8ES now for the last year or so and the plug reads perfect. The others did also. I changed plugs a couple of years ago to see what plugs were satisfactory because I had a few cartons of plugs in the same heat range and they all worked and read very good for a 30 day test period. I use the cart daily for rounds in my vineyard and golf on week ends. So!!!! I found that there is no best plug as long as the specifications are correct. A B8ES seems to be correct.
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