Yeah, NEVER light one of these things up indoors!! I was tuning on my buggy a couple of weeks ago in the back room of my business (barber shop) because the weather was too bad to go outside (near white-out conditions). Long story short, I had to open the front and back doors and fan for several minutes on a 20 degree day while the smoke cleared (I had it pretty rich at the time). Luckily I had no customers come in for a while after that due to weather conditions, but even after the smoke cleared it still took a couple of hours for the smell to calm down.

And yes, you must apply the plug ignitor each time you fire the engine.