After I shift gears, my xb12r gear shifter is not returning to the natural position for me to shift into the next gear. There must be a return spring involved that is sticking or worn out, right? I also would like to put on a new clutch cable, are these 2 tasks something that I can do with ease? And at the same time probably would be a good idea, since it looks like I will have to take off the primary cover. Has anyone had the same problem with the gear shift? THANKS!!!!