Question. If the Front right coil securement screw came lose during riding and the coil was allowed to wiggle and make intermittent contact with the top of the spark plug...would any thing be damaged or weak'nd ?
For it to come off the spark plug terminal the hold down screw would have to be loosened over 7mm pretty much all the way out. For arguements sake assume this did happen the coil may fire to the cylinder walls= no damage or be so far away from anything metal that the spark could not ground at all. You should be fine. Worst case scenario a fouled plug.
This screw on my new bike did totally work its way out - fortunately though when I found it, the little flexible metal wire clip had captured the screw and both were still hangin on the wire. Thanks