Umbhobho we-YS i-diesel fuel injection ilawula ukunikezelwa kwamafutha esithuthi ngokuchanekileyo, ukuze injini yesithuthi inomlinganiselo ochanekileyo we-air-fuel kulo naliphi na ilizwe, kwaye ugcine injini isebenza kakuhle; kwangaxeshanye, YS nozzle fuel atomization degree iphezulu, ukuqinisekisa ukuba amafutha angatshiswa ngokupheleleyo.
I-YS ibonelela nge-Bosch 110 series, i-Bosch 120 series, i-Bosch Piezo series, i-Bosch Φ3.5 series, i-Denso series, i-Denso G3, i-series ye-G4, i-Siemens series kunye nezinye ii-nozzles ze-injector zabathengi behlabathi.