Re: Chrysler 9.9 No Spark please help
First see if it has a kill switch that is stuck or damaged. This is usually a black rubber push button on the front of the engine.
If that is OK, then you need to pop the flywheel and check, clean, and reset the points to .020 gap. While under there check for broken or frayed wires--especially on the condensers-- and cracked cases on the condensers. Replace as needed.