do any of you now if a big 4*4 gooes in deep water then all of the sudden alot of the power dissapears and all four wheel just two spin slowly i think it's the carb. but i don't really know
its proble be cuz you got a yamadog lol it probel cuz the tire are to big
Put dilectric grease on your spark plug, run the carb vent to the handle bars and plug the carb drain and you will be good to go.
Do the above listed, and also if there is a lot of steam rising when you go through deep water that could be your problem too. The steam will not allow the airflow your carb needs.