I've had the same problem with my setup. I have shortened the rod twice (cut nearly an inch off). First and second no problem. Slippage when I apply full throttle while running 60, 70, 80 in third or fourth gear. I can move the clutch arm when the clutch is disengaged so it must be loose enough
Is it time for a better clutch and pressure plate assembly to mate up with my aluminium flywheel? Could I have glazed the clutch disc when this first happened?
Randy