Starter Clutch Sprag Assembly. Compatible with following Yamaha models: Riva 125 XC125 1985-2001. Part number: 4KL-15570-00-00 / 50M-15570-01-00 / 50M-15570-02-00 / 50M-15524-00-00. We strongly suggest comparing the posted picture to the unit(s) that needs to be replaced..
