Download Harley-Davidson Big Twin Conversion Installation Guide – Turn ignition switch to the OFF position. Disconnect the ground cable from the battery. 2) Disconnect the wire at the coil which runs down to the points. Remove the point cover plate. 3) Note the position of the slots in the point plate. When the Mallory UNILITEfi plate is installed, use the position of the slots to approximate the timing. 4) Remove the wire to the points. Remove the O.E. standoffs and washers. Remove the point plate assembly. 5) Remove the O.E. cam sleeve from the advance assembly. Place a small amount of oil on the advance shaft which supported the cam sleeve. 6) Slide the Mallory shutter wheel onto the advance shaft. Make sure the shutter wheel is all the way down into the advance assembly (it will only go one way due to the roll pin in the advance assembly). 7) Install the advance and shutter wheel into the nose cone. Make sure that the pin on the bottom of the advance engages the slot on the end of the camshaft. Apply Loctite to the threads and install the advance bolt. Torque to 25 in.lb. 8) Rotate the shutter wheel by hand (counter-clockwise) and release. It should rotate about 10 degrees and “snap” back when released.