[bestgenman]

Michael is spot on about the sensor.  It will cause the cruise to drop out if not set correctly.  The cruise is part of the DDEC and receives a frequency signal from the sensor.  The sensor is called a MAG PICKUP and most any will work.  The closer the tip is to the toothed wheel the stronger the signal.  In generators, the accepted method is to let the tip touch the tooth (directly on top of the tooth) and back out one half turn.  That may be .030" , I've never measured it since it is inside the flywheel housing.