rustyedge1 183 #1 Posted June 5, 2025 The old 7 hp is getting tired and fouling out j8c plug, what is a hotter plug which can be used ? Any help appreciated. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,918 #2 Posted June 5, 2025 With Champion plugs the higher the number the hotter the plug as long as you stay with the JxC An 8 in one type of plug is not the same temperature as an 8 in another type. Share this post Link to post Share on other sites
rustyedge1 183 #3 Posted June 5, 2025 1 hour ago, gwest_ca said: With Champion plugs the higher the number the hotter the plug as long as you stay with the JxC An 8 in one type of plug is not the same temperature as an 8 in another type. It had a CJ14 in it when I bought it. Is that as hot as Champion comes ? Share this post Link to post Share on other sites
squonk 45,059 #4 Posted June 5, 2025 (edited) You have to watch the reach. Too long it can hit a piston. Too short changes the flame pattern and can burn a piston. You could try an anti fouler. Edited June 5, 2025 by squonk 3 Share this post Link to post Share on other sites
