Mine is a pita too start cold. I turn mine to prime wait for a few seconds, crank for5 seconds. Turn to on, then half choke then crank. She then will fire then stall. I then wait 5 or so seconds then crank on her again it will fire then I slowly crack some throttle then run full choke and let her warm up a few mins slowly dialing less and less choke........ I was starting mine with air temps in the teens when I rode her to work.. all I know is the is the worst carbed anything to start I have ever owned!Recently I have been having problems with getting my bike started, it turns over fine and has plenty of spark but it struggles to start and if its cold out it wont start at all.
Are you using the choke? Wet cells, even new ones do not like the cold.I just put a new battery in it, however it is a wet cell battery. I dont think its the battery, it acts like something else but im not sure exactly what. I did knock out the baffles and adjust the air fuel screws like everyone on this sight explained and its gotten alot worse.
You should back them out. If you carefully screw them all the way in...do not use alot of force, till they seat, and back them out 2-1/2 turns each...that should be fine.Should I back the screws out or screw them in?