Just take off the backplate. You don't need to remove the head..becuae there's an opening from the exhuast port.
Unless you still want it to be purple

Remove all plastic parts....O -ring of the carb's throat, needle valves (HS and LS.)
Or don't even mess with the carb(soak it)...but remove it from the engine.

Let the engine soak in fuel over night...all the parts

The only reason I would take it completely apart is becuase the out board bearing.

That's only 6 more screws on the head.lol

Becareful with the head's shim. After removing the head.
Slide out the cylinder sleeving..notice a little notch...it's fool proof.
Or the exhaust port gose on the exhuast side.lol

Slide the piston's rod from the crack and remove the pistion/rod assembly from the engine (leave this as one assembly)
Slide out the crankshaft