Larry-James-Thomas-Ken
This past summer I worked on a fork lift that kept blowing coils and condensers. It had an external resistor,which I found was letting full charging system voltage through to the coil. The resistor looked okay,but my meter said otherwise.I replaced the resistor and the damaged coil,no more problems. I have been a mechanic for 40 yrs and had never run into that before.Larry,use a digital meter and check all your numbers. The Kohler engine manual section #8 has a lot of good info also. There are two basic types of traditional coils,ones that use an external resistor(or resistance wire) or ones that receive full charging system voltage and the resistor is built in to the coil. THey may or may not be marked as to which type they are.