The bike has been standing outside (no cover) in the rain, damp and cold for three days now.
The bike would always start from cold fine but was always a little lumpy, sometimes worse than others, to start with until it had warmed up a bit. I have just started the bike and it idles, from stone cold, with no lumpyness at all and it revs clean as well IE no missing of revs through the range. Something you
dont need with a V-Twin.
It sounds to me like damp is getting to the coil, caps and/or leads or maybe condensation once the bike is parked up. Both of which is something that I have suspected for sometime now. It could be the quality of the HT system, as it does not take much for it to start breaking down, and/or because the leads are so close to the frame (Earth). Who knows
.
The last time I needed to do this sort of thing was in about 1976. It was a case of having to then but in this "day and age" its a very poor situation. But "hey-ho" its a Buell and I should not take anything, even basic stuff, for granted
.
Anyway it seems to work and its a cheap/easy enough thing to do.