Take the prop off! Use the wrench to unscrew the shiny aluminum nut thingy behind the prop driver. Removes the prop driver and unfastens the plastic carb body at the same time.
The wrench also will loosen the venturi to remove the NV assembly from the plastic carb body, if you didn't already do that by the crash method. And it will remove the glowhead and cylinder from the crankcase. For the last operation, I'd suggest heating the crankcase with a heat gun or oven to prevent the need for excessive force...which will/can fubar the cylinder. Remove the plastic carb body
before trying to remove the cylinder....but better yet, don't remove the cylinder unless you absolutely gotta.

Steve