I changed my plugs tonight and had one problem. I used the harley service manual for the torque settings. Plugs went in fine but the coil pack on top didn't. I twisted off one of the bolts on the front coil pack. I am a little distribured about this for one reason. I used the torque settings from the manual instead of hand feel with a ratchet. Has anyone had this happen to them? I was lucky because I was able to lock a visegrip onto the screw and twist it back out but what a potential huge mess. Just curious.