Hello all. Recently purchased a 2010 sportsman 500. Guy said it wouldn’t run right above 5000 rpms. Got it fairly cheap. Anyway after pulling the carb off for the fourth time I realized it had a 175 main jet in the carb. Research shows that a is huge jet for a sportsman. Anyway after getting ticked off at it not running right I pulled the air box cover off and went for a ride. Damn thing ran like a wild ass ape. So my question is what is the stock jet size? Also thinking about a big gun exhaust. Will a jet this big work that exhaust?