Impeta ya moteri ya piston nibintu byingenzi muri moteri igira uruhare runini mugukomeza imikorere no gukora neza. Igikorwa cyabo cyibanze ni ugufunga icyumba cyo gutwika, kubuza guhunga imyuka mugihe cyo gutwika. Iki gikorwa cyo gufunga ntabwo cyongera gusa ingufu zakozwe muri lisansi ahubwo nanone bigabanya ibyago byo kuvuga amavuta yinjira mu cyumba cyo gutwika, bishobora gusohoka
