Imodoka yimodoka nigikoresho gitanga imbaraga kumodoka, kandi ni umutima wimodoka, ugena imbaraga, ubukungu, umutekano, umutekano no kurengera ibidukikije. Dukurikije amashanyarazi atandukanye, moteri y'imodoka irashobora kugabanywamo moteri ya mazutu, moteri ya lisansi, moteri yamashanyarazi nimbaraga zivanga.
Moteri isanzwe ya lisansi hamwe na moteri ya mazutu niyisubiza moteri ya piston yimbere, ihindura imbaraga zumuti za lisansi mu mbaraga za piston no hanze imbaraga. Moteri ya lisansi ifite ibyiza byihuta, ubuziranenge bwimiterere, urusaku ruto, guhera kubiciro byo gukora bike; Moteri ya Diesel ifite igipimo kinini cyo gukurura, imikorere yubushyuhe bwinshi, imikorere myiza yubukungu nigikorwa cyo kurakara kuruta moteri ya lisansi.
Moteri igizwe nuburyo bubiri bwingenzi, ni ukuvuga uburyo bwa crank buhuza inkomoko hamwe na sisitemu ya valve, hamwe na sisitemu eshanu zikomeye, gukonjesha, guhindagurika, guhirika kwamavuta. Ibice byingenzi ni silinderi guhagarika, Cylinder umutwe, Piston, piston pin, guhuza inkomoko, crankshaft, flhoel nibindi. Urugereko rw'akazi rwa Piston yongeye gusubirwamo moteri yimbere yitwa silinderi, kandi ubuso bwimbere bwa silinderi ni silindrical. Ihuriro rya Piston muri silinderi rihujwe nimpera imwe yinkoni ihuza binyuze muri piston pin, kandi kurundi ruhande rwintoki zihuza na Crankshar, zirashobora guhindurwa no kubyara kugirango ikore imirongo ya Crank ihuza inkoni. Iyo Piston yimuruka inyuma muri silinderi, inkoni ihuza isunika muri crankshaft kugirango izungurura. Ibinyuranye nibyo, iyo crankshashift izunguruka, ikinyamakuru cyo guhuza inkoni kigenda muruziga muri crankcase kandi gitwara piston hejuru no hepfo muri silinderi uhuza inkoni. Buri gihe cya Crankshaft, Piston ikora rimwese buri gihe, kandi ingano ya silinderi ihora ihinduka kuva ntoya, hanyuma ikava muri binini kugeza nto, nibindi. Hejuru ya silinderi ifunze n'umutwe wa silinderi. Gufata no guhumeka imishundura yatanzwe kumutwe wa silinderi. Binyuze mu gufungura no gufunga uruzitiro n'insanganyamatsiko, bigerwaho mu kwishyuza muri silinderi n'umunaniro hanze ya silinderi. Gufungura no gufunga uruzitiro hamwe nudusimba twinshi tuyoborwa na camshaft. Cameshaft itwarwa na crankshaft binyuze mumukandara cyangwa ibikoresho.
Turi Zhuomeng Shanghai Automobile Co., Ltd., igurisha MG & Mauxs Ubwoko Bubiri bwibice byimyaka 20, niba imodoka yawe ikeneye ibice, urashobora kutwandikira.
