250摩托车曲轴箱右半部胶质密封圈,经常损坏。更换时,要解体曲轴箱,每换一次需要5到6个小时的时间。在野外遇到这种情况,更不易修复,有时得打碎挡油盘,才能取出被损的密封圈。同时,容易破坏曲轴箱。为了装卸方便,我们用曲轴箱左半部轴承油圈(铝制品),代替曲轴箱右半部挡油盘 250 motorcycle crankcase right half of the gel seals, often damaged. Replacement, to disintegrate the crankcase, each change takes 5 to 6 hours of time. Encounter this situation in the wild, more difficult to repair, and sometimes have to smash the oil pan in order to remove the damaged ring. At the same time, easy to destroy the crankcase. In order to facilitate loading and unloading, we use the left half of the crankcase oil ring (aluminum products), instead of the crankcase right half of the oil pan