Hi,
You can remove the entire air cleaner and expose the entire throttle body and Fuel distributor.
From there push the sensor plate down. Look inside, it should be chrome metal in color; however ours all should be black with soot and gunk. While having the sensor plate down, spray at the visible black gunk and you will see them flow down and expose the real metal color beneath. This is what you should achieve.
Spray as much as possible to remove as much gunk as possible. The excess will flow into the engine to be combusted when you fire the engine.
While you have the air cleaner off, might as well look behind near to windscreen and see the Idle control valve; a cylindrical looking metal bottle resting on the intake manifold. Remove the electrical connection and top and bottom hose ane look into the valve. It should be chrome as well. Spray the carb cleaner inside and shake off the excess. If you have a 9v battery, you can test it to see the valve closing and opening ( I gathered from someone else on this -) )
Also check that all the vaccum hoses and three way rubber hoses on the intake manifold are intake and CRACK free. Replace or push the plastic tube in more if necessary.
Check for any wiring harness that is cracked open exposing bare wires. These can be remedied using splicing tape. Seperate the pair and tape them up.
Enjoy. You might find more chores when you are more familiar and daring.
