Imoped Inkqubela phambili ebalulekileyo kuyilo lwenjini iyanqweneleka kwizithuthi ezizayo. Nangona kunjalo, zimbini iingxaki eziqhubekayo: ukuvutha okusebenzayo kunye nobuhlobo bomsebenzisi. Oku kubandakanya ukuqwalaselwa kwe-vibration, ukuphathwa kwemoto, ukufumaneka kwepetroli, isantya sepiston esithetha, ukunyamezela, ukuthanjiswa kwe-injini, i-crankshaft torque, kunye nokulula kwenkqubo kunye nokuthembeka. Oku kubhengezwa kuchaza i-4 injini ye-stroke entsha enikezela ngaxeshanye ukuthembeka, ukusebenza kakuhle, kunye nokukhutshwa okuphantsi kuyilo olunye.