How to Wire a New Key Switch to a Mercury 150 EFI?

Answer If your Mercury 150 EFI boat motor will not start, and the battery has tested positive, you may have to replace your ignition switch. The switch runs straight to the boat's battery; from there, it ... Read More »

Top Q&A For: How to Wire a New Key Switch to a Mercury 150 EFI

How to Split a Wire From a Light Switch to Another Switch in the Bathroom?

Splitting a wire from the light switch to another switch in your bathroom requires basic electrical wiring knowledge. You can add a new switch using your original switch as the power supply to any ... Read More »

How to Remove an NC Mercury Switch?

Mercury switches are found in many types of electrical devices, including vehicles. If a vehicle has a mercury switch, it needs to be removed before the car can be crushed or used as junk. States s... Read More »

How to Replace the Headlight Switch on a Mercury Topaz?

Malfunctioning headlights on a Mercury Topaz can be caused by a faulty headlight switch. This part allows the driver to turn on and off the vehicle's low and high beams, as well as adjust their bri... Read More »

Multifunction Switch Installation for 93 Mercury Tracer?

The multifunction switch on a 1993 Mercury Tracer controls the turn signals, hazard flashers and headlamps. Since all three systems route through the switch, if the switch fails, all three systems ... Read More »