My 1996 polaris Explorer idles fine when i go to take off it falls a little bit through throttle and then takes off and now I noticed its leaking from the inside what could be wrong

 

You will likely be better off asking this question in the Polaris forum. I would grab a can of berrymans carb cleaner and run some of that through the carb to see if it fixes the bog. When you say it is leaking from the inside, what do you mean. Are you talking about the inside of the air box or the engine or what. Please provide more details and I am sure you will get an answer.