Delphi isanzwe ya gari ya moshi igenzura valve ya YS ifite imiterere yoroshye, uburemere bworoshye no gukoresha ingufu nke. Umwanya wo gufungura no gufungura igihe cyo kugenzura valve irashobora guhinduka nkuko bisabwa. Muri ubu buryo, gufungura no gufunga umuvuduko wa inshinge birashobora kugenzurwa byoroshye, ingano yo gutera ibitoro irashobora guhindurwa muburyo bwagutse, kandi itegeko ryo gutera inshinge zirashobora guhinduka.