I have had a miss that has plagued me for a while. It happens at low throttle taking off and at idle periodically, but the bike revs out to 10,500rpm just fine. I think I have narrowed down the miss though, but not sure what the culprit really is. While doing a bunch of work yesterday (throttle cable, new points/condenser, fixed leaking float, reset, resynched carbs), I noticed that when the miss happened, the timing light cut out completely or at least halved its sparking frequency or worse. This also happens on deaccell, but deaccell isn't really an issue so far. The coils are original, but with the wires replaced with MSD wire, 5k ohm caps and new plugs. As far as I can tell, nothing should be causing this miss. Is this possibly the old coils finally starting to show their age?