I have replaced the coil and the ignition module on the distributor. I have also used a meter to troubleshoot why engine will not start. I am getting plenty of fuel in the carburator so I know it is not a fueling issue. It is definitely a firing problem. The engine turns over but will not start. It seems that the distributor may need to be replaced. I want to be sure that the distributor is the problem before I commit to purchasing a new one. Using a tester it seems that I am not getting a pulse on the distributor. Any other ideas or suggestions on troubleshooting?