It's a factory gas scooter. Its a viza venom to be exact. everything is stock including the carb. i have an air filter, i just don't have it on. I have to spray starting fluid in it to get it to start. I don't recall seeing an adjustment screw on the top.
Thanks for the pics. Which way do i turn to richen it up a bit? clock or counter clock? next question, why do i have top spray starter fluid in it every time to start it?