looking to change plugs before season, 97 merc 175 efi. What would be the best replacement plugs? Also what should I gap them at? I run 87 oct with seafoam, live in southern MI if that matters.
looking to change plugs before season, 97 merc 175 efi. What would be the best replacement plugs? Also what should I gap them at? I run 87 oct with seafoam, live in southern MI if that matters.
NGK: BU8H (It's a surface gap plug.... so there is no gap to set).
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
Reply With Quote