This question applies to most all garden tractors, but since all mine are Cubs and this issue applies to my 124 , I thought it best to ask here on this forum . How can I use my digital ohm/voltage meter to test the engine's coil and condenser statically , in other words, they are not wired into the tractor's electrical system .
I just learned a valuable lesson on my almost completed 124 restoration : make sure the key switch is in the full " off " position before walking away from the tractor . I left the key in the " on " position and blew the top off of the coil, spraying oil all over my 124 and the floor underneath . I was fortunate in that there was only a lot of smoke generated, filling the garage but luckily no fire . It would have been disastrous since I had just filled the gas tank located just above the coil ! As I understand , the situation was caused by a combination of the key switch in the " on " position and the engine's point set was closed causing the coil the draw more current than usual, overheating to the point of exploding . The coil was a used one that had been painted, the condenser and point set were both brand new . Here are pics of the resulting damage , as well as two " before " pics :