It is located on the front of the motor near the bottom to the right of the camshaft belt cover. As you can see from the previous post I was getting quite a few errors on Protune. They first sign of a problem was hesitation, almost like a misfire a few minutes after starting, it got worse until it stopped starting all together. Was very unpredictable. I originally thought a ground issue based on a shared ground with the various sensors, but tested the output of the crank sensor which should be 1 volt or greater when trying to start the engine. Mine was reading 0.164 to 0.224. Replaced and it fired right up. I got the sensor from Vital V-twin, around $100 USD. S&S part number 106-0734. In the Morgan Parts Book it is incorrectly listed as "Camshaft Angle Sensor" number E130008.