another spark plug question my outboard an 1976 evinrude 40 had champion L86c plugs in it whenI got it<br />the champion book recommends UL51c which changes up to a b7hs ngk. I tried a pair of br7hs ngks and <br />had trouble with the bottom plug fouling while trolling, I just replaced them with a pair of BR6HS (resistor because of <br />my ham radio) questions being is this the write plug? what are your thoughts on Champion VS NGK? I would of like to tried <br />some of the new bosch platiunim plugs but I guess there not available for outboards yet.<br /><br />thanks for you thoughts!<br /><br />Warren Kean 