Ese igifuniko cya valve cyacitse
Muri rusange hariho impamvu nyinshi zangiza kwangirika kwa valve. Iya mbere ni uko bolt irekuye, iyakabiri ni moteri ya moteri, iya gatatu ni ugukata igifuniko cya valve, naho icya kane ni uko igipfundikizo cya valve cyangiritse cyangwa kidashyizwe hamwe na kashe.
Mugihe cyo guhagarika moteri ya moteri, gaze nkeya izatemba kuri crankcase hagati yurukuta rwa silinderi nimpeta ya piston, kandi igitutu cya crankcase kizamuka mugihe. Muri iki gihe, igikonjo cyo guhumeka gikoreshwa mu kuyobora iki gice cya gaze kugera kuri feri nyinshi hanyuma ukayihumeka mu cyumba cyaka kugirango ikoreshwe. Niba indege ya crankcase ihumeka ihagaritswe, cyangwa gutandukana hagati yimpeta ya piston nurukuta rwa silinderi nini cyane, bikaviramo imiyoboro ikabije yumuyaga hamwe nigitutu kinini cya gaze, gaze izasohokera ahantu hafunze kashe nkeya, nka gaze ya gipfundikizo ya valve, crankshaft imbere na kashe ya peteroli yinyuma, bikavamo amavuta ya moteri.
Igihe cyose ushyizeho kashe, komeza Bolt, kandi igifuniko cya valve ntigicika cyangwa ngo gihindurwe, byerekana ko igifuniko cya valve ari cyiza. Niba utorohewe, urashobora gukoresha umutegetsi hamwe nubunini bwikigereranyo (feler gauge) kugirango upime uburinganire bwigifuniko cya valve kugirango urebe niba bidahinduka.
