Greetings, I have recently acquired a 10 year old 826 lXE. The machine is in great shape, having come from my dad who hardly used it. The issue I am having is the wheel clutches don't seem to really work. I have checked the lever/cable for the proper adjustment and both levers /cable are within spec. Anybody have any suggestions of what else it could be? Other than this issue the machine works awesome. Any help or suggestions is appreciated.