Iiplagi ze-Spark, ezixhaswayo njengeplagi ze-volt, ziya kusebenza njenge-voltage ye-voltage ye-pictoge (iplagi yomlilo), evelisa i-spark yombane, ivelisa i-spark yombane ukudibanisa umxube wegesi. Iimeko ezisisiseko ze-injini yokusebenza ephezulu: I-spark ephezulu kakhulu, umxube ofanayo, umyinge woxinzelelo oluphezulu. Iimoto ezineenjini zangaphakathi zokudibana ngokubanzi zisebenzisa ipetroli kunye ne-dielish peel. Kwimakethi yemoto yaseTshayina, iimoto ze-petroli zihlala ziyinxalenye enkulu. Iinjini ze-petroli zahlukile kwiinjini zedizili kuba i-petroli inendawo ephezulu yokuhlinsa (malunga nama-400 degrees), efuna ukunyanzeliswa komxube. Ngokukhupha phakathi kwe-electrodes ukuba ivelise i-Spark, i-injini ye-petroli isebenzisa ipetroli yokuvelisa amandla, kodwa njenge-Petroli ye-Petroli inesimo seRusi, ukuze sibe senze i-queration ye-REPEALS. Apha i-spark i "spark plug"
