Moped Ana son ci gaba mai mahimmanci a ƙirar injin don abubuwan hawa na gaba. Duk da haka, matsalolin guda biyu suna ci gaba: konewa mai inganci da abokantakar mai amfani. Wannan ya haɗa da la'akari da rawar jiki, sarrafa abin hawa, wadatar mai, ma'anar saurin piston, juriya, lubrication na injin, jujjuyawar crankshaft, da sauƙin tsarin da aminci. Wannan bayanin yana bayyana sabon injin bugun bugun jini 4 wanda a lokaci guda yana ba da aminci, inganci, da ƙarancin hayaki a cikin ƙira ɗaya.