I have a Cat V40B forklift with a Continental F163 flathead four with battery ignition. I had someone using it and it overheated and died. Since then, no spark. I've replaced the cap, rotor, coil, condenser and still nothing. There is power to the positive side of the coil and continuity on the wire from the negative side of the coil to the points which don't look bad. Any ideas? I'm at a loss and really need to use this forklift.