My backfire sounded the same and that turned out to be a loose front sparkplug so maybe check both plugs and clean/replace them at the same time. as you know dont overtighten them! lol
Type: Posts; User: ToneTheMoan
My backfire sounded the same and that turned out to be a loose front sparkplug so maybe check both plugs and clean/replace them at the same time. as you know dont overtighten them! lol