Ama-motor asebenzayo
Amadrayivu esimanje, kokubili ukuthungela kwenhlansi nokucindezelwa komlilo, akudingi ukugqekezwa ngomqondo wakudala wegama.
Ngakho-ke asikho isidingo sokushintsha amafutha nesihlungi noma ukulungisa ama-valve ngemva kokugijima kuka-1000 - 1500 km. 
Ezinjinini zanamuhla, ukuhlolwa kokuqala ngokushintshwa kwamafutha kwenzeka, kuye ngezidingo zomkhiqizi, ngemva kwamakhilomitha ayizinkulungwane ezingu-15, 20 noma 30 noma ngemva konyaka wokusebenza, noma yikuphi okuza kuqala.
Nokho-ke kufanele kugcizelelwe ukuthi izinjini zesimanje ngesikhathi sokuqala ukusebenza (okungaba ngu-1000 km) akufanele zigcwale kakhulu ngokushayela ngesivinini esiphansi namagiya aphezulu, futhi akufanele zilayishwe kakhulu endaweni ebandayo ngokushesha ngemva kokuba ziqalile. Izingxenye zokungqubuzana zalezi zinjini zenziwe ngomshini ngokunembe kakhulu, kodwa kufanele ziqondanise futhi ziqondaniswe enye nenye, kube nomthelela kumakhilomitha azayo.
