I have a 2001 polaris 700 rmk 136. I love the sled but when i bought it it had a boost bottle on it and the boots were torn so i took the bottle off before i ran it. Ever since I bought it its always gurggled at idle to take off and its always made a dull noise up until i get past mid range than it sounds like any other sled. It runs fine but latly I've felt of lose of power and i'm wondering if putting the boost bottle back on will fix the gurggle? I know its not the carbs because i switched carbs with my dads 2001 700 rmk and it still makes the same noise. Compression is 125 on both sides. Any thoughts?