it shouldn't take you too long really. I don't know how buried the carb is though.
Took my daughter out dirt biking today and dragged the Hero 3 along with me to take some pictures. Found a new angle that is pretty damn cool. I hooked the suction cup mount up to the side of the swingarm and hung the camera down below the footpeg. Here's a couple of screen captures for now:
Landing....camera is about to get a gravel facial.