Kubera ko ubushyuhe bwihariye bwamazi ari bunini, ubushyuhe burazamuka nyuma yo gukuramo ubushyuhe bwumuriro wa silinderi ntabwo ari bwinshi, bityo ubushyuhe bwa moteri binyuze mumashanyarazi akonjesha amazi, gukoresha amazi nkumuriro utwara ubushyuhe, hanyuma ukanyura ahantu hanini h’ubushyuhe mu buryo bwo gukwirakwiza ubushyuhe bwa moteri ya moteri ya mazutu.
Iyo ubushyuhe bwamazi ya moteri ya moteri ya mazutu ari mwinshi, pompe yamazi isunika amazi inshuro nyinshi kugirango igabanye ubushyuhe bwa moteri, (Ikigega cyamazi kigizwe numuyoboro wumuringa wuzuye.
Amashanyarazi ya Diesel yashyizeho ikigega cyamazi afite uruhare runini mumubiri wose wa generator, niba ikigega cyamazi gikoreshejwe nabi, bizangiza moteri ya mazutu na generator, kandi bizanatuma moteri ya mazutu isenyuka mubihe bikomeye, kubwibyo, abayikoresha bagomba kwiga gukoresha neza moteri ya mazutu yashizeho ikigega cyamazi.