Injini kufuneka ifunxe umoya omninzi ngexesha lenkqubo yokusebenza.Ukuba umoya awuhluzwanga, uthuli olumisiwe emoyeni luya kuxutywa kwi-cylinder, oluya kukhawulezisa ukunxiba kweqela lepiston kunye ne-cylinder.Amasuntswana amakhulu angena phakathi kwepiston kunye ne-cylinder anokubangela "ukutsalwa kwe-cylinder", eyona nto ibaluleke kakhulu kwiindawo zokusebenza ezomileyo kunye nesanti.Isihluzi somoya sifakwe phambi kwe-carburetor okanye umbhobho wokuthatha ukucoca uthuli kunye nesanti emoyeni, ukuqinisekisa ukuba umoya owaneleyo kunye nococekileyo ungena kwi-cylinder.
Ngokomgaqo wokuhluza, izihluzi zomoya zinokwahlulwa zibe luhlobo lwesihluzi, uhlobo lwe-centrifugal, uhlobo lokuhlambela ioyile kunye nodidi oluhlanganisiweyo.
Ngethuba lokugcinwa, into yokucoca iphepha akufanele ihlambuluke kwioli, ngaphandle koko i-filter yephepha iya kuphumelela, kwaye kulula ukubangela ingozi yesantya.Ngexesha lolondolozo, kuphela indlela yokungcangcazela, indlela yokususa ibhrashi ethambileyo (ukubrasha ecaleni kwemibimbi) okanye indlela yokubuyisela umoya ocinezelweyo ingasetyenziselwa kuphela ukususa uthuli kunye nobumdaka obuncanyathiselwe kumphezulu wesici sokucoca iphepha.Kwicandelo lokucoca elirhabaxa, uthuli oluseluthulini lokuqokelela inxalenye, iiblades kunye nombhobho wenkanyamba kufuneka zisuswe ngexesha.Nokuba inokugcinwa ngononophelo ngalo lonke ixesha, into yokucoca iphepha ayikwazi ukubuyisela ngokupheleleyo ukusebenza kwayo kwasekuqaleni, kwaye ukuxhathisa kwayo kokungena emoyeni kuya kwanda.Ngoko ke, ngokuqhelekileyo, xa into yokucoca iphepha kufuneka igcinwe okwesine, kufuneka itshintshwe into entsha yokucoca.Ukuba into yokucoca iphepha iqhekeziwe, igqobhozekile, okanye iphepha lokucoca kunye ne-end cap zihlanjululwe, kufuneka zitshintshwe ngokukhawuleza.