I was mudding in some old cow ponds with my friends and my 1999 bayou 220 died and had to be pulled out the oil looked clean and i fushed the carburator. When it finally started it blew out mud out the exhaust and it was rattling like maybe the main bearings and it started smoking , so I changed oil and filter and it still does it and now is smoking where can I get a motor rebuild kit and what all should I do I love it but dont want to put more than $300 or so in it.