Coupler Kit 581535001

Hi David and thank you for contacting us, you will need to chase the problem back towards the engine to see what's not connected anymore. It can be anything from the cutting head back to the clutch. Remove the cutting head and start working back. With the cutting head off, start the engine and see if the shaft turns. I am thinking any broken pieces will be visible as you take them apart. Check that the clutch spins when you rev the motor, if it does not or is slipping then you have a clutch problem and will need to replace it. I hope this helps and good luck with your repair.