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How to Find the O2 Sensors on a 2008 Softail Deluxe

Your 2008 Harley Softail Deluxe has both a primary and secondary O2 sensor. The primary O2 sensor is located under its own plastic cover, mounted to the front of the engine. The secondary O2 sensor is plugged into the wiring harness, located to the right of the oil tank on the right side of the bike. Accessing your motorcycles O2 sensors may be necessary in order to perform various electrical or engine modifications.

Instructions

1

Remove the two bolts at the rear of the seat. Slide the seat back, and remove it from the bike. Underneath the seat is the battery, as well as various parts of the engine wiring system. Use a Phillips-head screwdriver to disconnect the negative battery cable to prevent an accidental short circuit.

2

Remove the plastic primary O2 sensor cover, mounted to the front of the engine. This is secured by a plastic clip that can be undone by hand. Underneath the plastic cover is a black wired plug, which is the primary O2 sensor.

3

Search along the right side of the motorcycle for the secondary O2 sensor. It is located just to the right of the oil tank, mounted just above the exhaust pipes. The secondary O2 sensor looks exactly like the primary sensor, and is connected into the engine wiring harness, tucked within the chassis frame.

Posted by Unknown at 12:15 PM

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