Look for 16:9 or letterbox somewhere on your camera. To change them to 16:9 on Premiere, this is off the top off my head, you need to right click the clip in your bin, click interpret footage, pixel aspect ratio, conform to NTSC 16:9 i think.
I also wouldn't convert any footage to 16:9 if its allready 4:3, and i wouldn't use 16:9 for scooters ever (excluding HD)