Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hi, my name is***** will be assisting you.
The wire being unhooked will not cause the engine to not run. However it goes into the back of the plastic grounding switch or terminal that is located near the throttle control assembly. There has to be another problem keeping the engine from running. When you unhook this wire it just eliminates the usefulness of the switch and would leave then ignition in the run position all the time which is not a problem until you go to shut the engine off and then the switch will not work because the wire is unhooked. Have you checked to see if you are getting spark to the plug?