原帖由： Tony ,
Hey va3grp. Scooters are not my thing, but I did look into it, and found an actual service manual for your model. Lots of useful information and loaded with diagrams that should supply what you need. Just do a search for “YJ125S Service Manual - 49ccScoot.com”, and the pdf manual can be downloaded, or you can simply view it’s contents on line. Good Luck.