So...I've been having a problem with my Thruxton (figured I'd ask here since it's essentially the same as the BA) for the past few months and have finally decided to give it some attention.
OK...when I start 'er up with a completely cold motor and choke full out, it'll idle relatively smooth at around 1300 rpm, then after about a minute or 2, drop down to 700 and stall out. It's becoming a bit of a pain and I'd rather not just run the bike with a cold motor.
Now I don't think it's a low idle issue because when it's at running temp, it's set at 1100 rpm and starts and idles perfectly. If it makes any difference, I'm running Epco pipes, 130 mains, and stock pilots (40's).
At first I was thinking it may be as simple as raising the pilots up a size, but seeing as it runs & idles like a champ warmed up, I'm not sure about it.