Home › Forum › Ask A Member › Champion J6J or J6C › Re: Champion J6J or J6C
September 20, 2018 at 1:33 pm
#83264
quote Drifter:
Seems that I remember racers filing the electrode back.
That is true, cut back electrode proved better. Ex on my 1973 Merc 25ss it came with polar gap Champ L78V plugs, for my racing (back in the 70’s) they were a problem. Couldn’t read for combustion conditions and the flooded a lot. Best plug was determined by many racers to be a Champ L61Y (NLA), projecting nose with factory cut back ground electrode. I saved 10 and still use them on the same engine at AOMCI meets great plug even over NGK BP8HN-10 supposed equivalent which is not cut back. No fouling, no flooding, ran great. Also could retard the ignition some with the deep projecting center electrode.