Beschrijving
Champion bougie.
Champion sparkplug.
Repl. Oem 4R5 Also repl #4 & #5
Sportster ’57-’85
Bougie #4 (Champion # H8C) was de in-rij bougie. Deze moest na de in-rij periode vervangen worden door #5. #5 echter, geeft veel problemen bij de koude start. In ’80 ging de fabriek over op #4R5.
Plug #4 (Champion H8C) was used during the break-in period. After break-in it has to be changed to #5. #5 however, was notorius for its bad cold starts. In ’80 the factory changed to 4R5.