Now I have some pictures of the air filter coming out.
I had to remove the left headlight to gain access to the bolts that held it on.
This is the throttle cable that controlled some valves in the upper intake manifold, which is that grey system of metal tubes on top of the engine.
Here it is with the upper intake manifold out.
I also took out the radiator. It pretty much just lifted out, after the hoses were disconnected.