Lucas = The Prince of Darkness.
I learned early on to replace Lucas coils in my Triumphs with a Suzuki coil which worked just fine and wasn't prone to dying when the temperature got above 90F. The coup d'gras for the old Triumph was when it would quit running everytime it rained. I guess in hind sight, I probably could have found where the water was getting in, but instead I went out and bought my first Yamaha, the XS1100.
There was a very nice, low mileage Triumph year 2000 Thunderbird cafe style bike sitting on a trailer with a forsale sign on it parked on the edge of town here when I came home yesterday. I had to stop and look at it. only 15k miles on it, and in vg condition. I wrote down the tele number on the sign. But, having just bought a Vulcan 900 2 months ago, I really don't need another ride.