Engine chuckles during cold start??

Is it normal for the engine to chuckle or shake a few times during cold start? The engine has plenty of power. Just wondering.

If my engine chuckled at me when I tried to start it, we would be having words. Define chuckle and shake? Does just the engine shake? If the car shakes, thats a problem. If its just the engine it could be fine and it could be a plug issue (not 100% sure on that). I recently changed the plugs on my car and have noticed that if I leave the car sitting in the driveway for a couple days without starting, the engine kinda takes a bit longer to start than it used to. I know the gap is right because the store I bought them from sets the gaps in front of you and I did not tap the plugs at all.