Small Engine Troubleshooting Problems? Ask a Mechanic Now.
On the bottom of the engine is the electric clutch
Check the two wires to it for damage.
If no damage, unplug the wires and see if fuse still blows.
If fuse does not blow, clutch may be shorted interanlly.
If fuse still blows, check the wires from clutch back to the switch for damage, If no damage, replace the switch
See if this helps.
On this model the clutch is internal. so it has a solenoid!