대림시티에이스 오토바이 엔진 헤드의 밸브 리데나 수리 구경하기 / Repairing valve oil seals on motorcycle engine heads - Daelim City Ace 촬영일 : 2021.05.13 Most of Daelim City Ace 100 motorcycle series valve oil seal (Lidena) repairs are It should look similar to the video above. If you take a look, I think it will be helpful the next time you repair yourself. If you knew that two little rubber rings could break your engine....