Question about burnt smell

[Wisakedjack]

I am wondering if anyone else may have experienced the following issue. I had a faint sweet smell last few times that I run the engine. It was not overheating, started fine and I did not see any smoke. We motored in today and engine suddenly died after running for 5 minutes in gear. We tried to restart it and it cutoff after running for few seconds. At this point there was a distinct burning smell from the engine compartment - kinda like a burnt plastic. I did a quick check and did not see any smoke or any part that was too hot to the touch. So, I am thinking what should I look into here? My wild guess is to check the coil and replace it if it looks like suspect. Does anyone have any other suggestions what may be at play here?