The bike in question is a 05 R6, whenever I turn the handlebars, the throttle will stick and it feels very rough when I try to turn it back, but only when I turn the bars all the way to one side. When the bars are straight, the throttle snaps back as usual. I noticed there was a small cut on the plastic surrounding the cable that pulls back to idle. Do I need to replace the throttle cables completely or should I try and lube it? Thanks in advance!