first off, It has happened twice now. It will run fine, shut if off and it didn't start back up, had no spark. put a new cap and coil on it and it ran fine. Worked for a couple days then parked it and went to start it, and same thing no spark. I have tried different modules, coils, rotor, condenser, and running a hot from the battery straight to the dist. the second time when I put the cap on it had spark, but it was a yellowish color, then it failed and im where im at. I am lost, cant think of anything else to try.