Subaru '81 , turn engine on no worries , turn engine off keeps running. Any suggestions other than take it to an auto electrician? Thinking install kill switch?

try checking for burnt wires that may be shorting out in the ign circuit, around the coil

 

also check the pink clip near the passenger strut tower

 

if there is still volts to the coil it will run with the key off. if you want to fix this problem cheap put a switch between the + coil terminal and its power lead

Thanks Miles , will check it out

 

 

 

try checking for burnt wires that may be shorting out in the ign circuit, around the coil

 

also check the pink clip near the passenger strut tower

 

if there is still volts to the coil it will run with the key off. if you want to fix this problem cheap put a switch between the + coil terminal and its power lead