Riding your ATV in the mud is something a lot of people love to do, but it's really bad for the terrain at large and not the safest environment to ride your ATV in.
There are some nuances to using your ATV in muddy areas,most people assume if you come across a big, muddy mudhole that you just hit the throttle and hope for the best, and that is why those people get stuck and have to get their ATVs towed out of the big, muddy mud holes.
Most mud holes are best handled in first gear, and another good trick for navigating your ATV through a mudhole is to keep your weight back on the seat to help keep your air intake clear and above the water line.
If the muddy water gets so deep that your ATV begins to float, hold your throttle and don't let your engine stop as that will let water into all the vent hoses and that won't equal a good day of ATVing for you if that scenario happens. As you hold your throttle, keep your front end up and let the tires search for traction to hopefully get you out of that situation quickly.
If you feel the tires losing traction in a shallower situation, stand up and rock the quad back and forth, looking for something the tires can get ahold of for traction concentrating on keeping the momentum going forward. Wiggling the bars can also help the front wheels find more solid ground. Whenever you get into muddy ruts, rock the quad back and forth to keep the wheels driving.
If you do get stuck on your ATV in a mudhole, don't make it worse by spinning the tires and burying the ATV even deeper. Get a buddy with a winch kit to pull you out and sometimes you can throttle your way out of the mudhole by walking along side your ATV.
Mud can be a challenge and a great learning experience if you know the proper techniques for getting though it on your ATV.