Have the cable in the perch and hooked up to the arm. With the bike running (in neutral) you can put your finger behind the arm on the case and pull it towards the front of your bike, when you feel it vibrate, pulse, whatever, that's rubbing. You want your cable to (at rest) be behind this point just a little so your not burning it up.
Let's call the perch adjust and the one below near the clutch b.
B is your clutch engagement. A is your fine adjust to your catch point.
Adjust b so your a little behind that rubbing point with the handel out. The fine tune A.
Lots and lots of youtube videos on it if you get stuck
