KYLEK 0 Posted December 26, 2000 My 620 quit charging this last summer. I tested the rectifier, regulator, and stator as the manual directs. They all tested fine. It has a rear oil seal leak that has mucked things up in this area also. I was hoping to pinpoint the problem with the charging system before tearing into things to change the oil seal. Need some tips! Share this post Link to post Share on other sites