活塞环响是一种常见的不规则的轻微的敲击声。多出现在装有小排量二冲程汽油发动机摩托车进行清缸或换环保养之后。活塞环响早期特征是,在发动机怠速运转时比较明显,提高发动机转速后减弱或消失。 活塞环响的主要原因:活塞环与气缸壁上部不接触的部分磨损较小,形成台阶(俗称缸肩),活塞在工作时升至上止点时,活塞环与缸肩相碰触,产生噪声。 Piston ring is a common irregular minor knocking sound. Appear in a small displacement with two-stroke gasoline engine motorcycle clear cylinder or ring after maintenance. Piston Ring early characteristics of the ring is more obvious when the engine idling, increase the engine speed after the weakening or disappearance. Piston ring ring the main reason: the piston ring and the upper part of the cylinder wall does not touch the wear less, forming a step (commonly known as cylinder shoulder), the piston rose to top dead center in the work, the piston ring and cylinder shoulder touch, resulting in noise .