Thanks Billy,
Air Filter (K&N) - clear
Plugs - normal
Rubber fittings - checked and/or replaced
Fuel - fresh and it doesn't act like a starvation or contamination issue.
It starts, but won't idle. I'll try pulling a plug wire today and see if I can isolate a coil.
Based on the severity of the misfire/backfire, I'm guessing coils, CDI or a timing issue, but I'm clueless and toolless when it comes to tracing electrical issues and don't want to just start throwing parts at it. I have an appointment with the local mechanic Tuesday, but I think he'll want to stick with (probably overpriced) Triumph factory parts. If I can isolate the problem, I'll be able to source/obtain what's best and preferably from Fasteddy or another forum vendor.
