I have a 2002 polaris sportsman 500 ho. today i discovered that it wasnt idleing, i ziptied the throttle cable tight and it idles good now, rode it about 30 minutes and it was fine. Just tried to ride it again and about 300 yards it started sputtering at half to full throttle. I know i need a new throttle cable but maybe a carb issue? Also battery drains slowly but the fourwheeler is charging like its suppose to.