Where is the wire located to unplug Set ignition timing 87 ford bronco 2?

There isn't a single wire you can unplug to "set" the ignition timing on an 87 Ford Bronco II. The ignition timing is controlled by the distributor and its mechanical advance mechanism, along with the electronic control unit (ECU). You don't adjust it by simply unplugging a wire.

To adjust the ignition timing, you need to:

1. Find the timing mark: This is usually on the harmonic balancer (the pulley on the crankshaft).

2. Use a timing light: This tool flashes a light in sync with the engine's spark, allowing you to see the timing mark on the balancer through a viewing window.

3. Access the distributor: This is the component that distributes the spark to the spark plugs.

4. Adjust the distributor: Loosen the distributor hold-down clamp, and then rotate the distributor slightly clockwise or counter-clockwise to adjust the timing. You'll need to use your timing light to ensure you're setting it to the manufacturer's specifications (found in your owner's manual or a repair manual).

Warning: Incorrectly setting the ignition timing can severely damage your engine. If you're not comfortable performing this procedure, it's best to take your Bronco II to a qualified mechanic. There are no "easy unplug" solutions for this task.