I recently flushed my brake fluid, standard maintenance practice. :bonk:The rear brake worked fine for two rides and there is no evidence of a leak anywhere in the rear brake system and the reservoir is full. I did notice that when we adjusted the height of the rear brake lever, the adjustment screw (if you call it that http://www.yamahaoftroy.com/fiche_section_detail.asp?section=36532&category=Motorcycles&make=YAMAHA&year=2000&fveh=963 , located in the package marked #2) was bent. We adjusted the rear brake lever and I noticed that the rear brake quit working all together. We adjusted it back, and it worked fine. Is it possible that the master cylinder is bypassing perhaps? I am thinking that I need to buy the new guts (as indicated above in the link) and rebuild my master cylinder...has anyone ever had an issue like this before? Thanks.