Bought this quad a few months ago and it really never ran "right". Overhauled the carb and it is running A LOT better. The last guy really messed around with screw settings and that’s why i got a good deal.
One screw that i can’t figure out what it does is this one in the picture on the bottom of the carb bowl? It’s adjustable but doesn’t seem to do anything. I’m thinking it’s the drain screw or does it do something else?

Bought this quad a few months ago and it really never ran "right". Overhauled the carb and it is running A LOT better. The last guy really messed around with screw settings and that’s why i got a good deal.
One screw that i can’t figure out what it does is this one in the picture on the bottom of the carb bowl? It’s adjustable but doesn’t seem to do anything. I’m thinking it’s the drain screw or does it do something else?