Hey Guys, So a friend of mine was helping me change the levers on my bike, while he was adjusting the clutch lever I hear a big click like a tool hitting the floor. After he says its all good I jump on and try to use the clutch and its gone completely loose and doesn't regain tension anymore The tension is lost at the end of the cable where it goes into the gearbox. My questions are, anyone know what may have happened...? Is this expensive to fix...? Can I do it myself...? Cheers for help!