'82 CGT, Electrical Problems

[TWFAUST at aol.com]

OK,here's where we are. Following Huw's suggestion to spray ether in  
through the warm air intake, I opened the hose. When I did that squirrel/mice  
hoardings poured out. Going further, I found that the cold air intake as  well 
as most of the air filter box was full. I vacuumed that out.
 
I squirted in the ether and it ran. I also got squirrel/mice hoardings out  
of the tail pipe. It idled slowly, when the accelerator was depressed it 
would  stall. I am led to suspect there is more in the tail pipe which is 
causing a  blockage. I will make further inspection. This confirms that the 
engine is  getting fuel, quantity may be in doubt. Ignition at idle seems a bit 
erratic, as  though not all cylinders are firing consistently.
 
Back to the electrical problems. I have tested the ignition switch with a  
circuit tester. There is power to the switch and power to the red/black wire 
 when the switch is moved to start. Somewhere the red/black joins with the 
red  which runs to the starter, but I cannot locate the junction. Any help 
with that  here?
 
I let it idle for about 15 minutes hoping it would blow itself out.  
Instead, it over heated.  The cooling fan was not operating. I jumped the  motor 
from the battery and the fan operated. Does anyone know if there is  any 
commonality with power to the starter? The power line to the fan is also  
red/black. The fuse appears to be OK.
 
Tom