Hello guys, ive had my pgo gmax 2007 model since 2007, looking for some help on the carb, ive only ever adjusted this big nut on the carb when the idle was very low, just been looking now i cant see anything else to adjust? for mixture idle etc, just thought it was a bit smokey last night in the mirror and car behind me in its headlights, thought it was maybe too rich.?... I have watched a few 2 stroke carb adjusting videos, none look like mine... Thanks