I was recently trying to recable my woking rsx shifters. I can't remember the exact sequence of events, but the cable became stuck in the right shifter. After bathing in wd-40 and getting the dust cap/metal piece back on properly, the shifter will only click up 2 or 3 gears. After that, nothing happens. I feel like the end of the cable is stuck inside the shifter body, but I can't figure how to get to it. I'm assuming that taking apart the shifters isn't an option. Help! Thanks.