Hi, brand new here.
I have a 2007 winter camo Ruckus, completely stock. I just moved from Texas, 450 feet, to So Oregon at around 4000 feet.
My Ruck hadn't ran in 3-4 years, I cleaned the tank and plug, got new battery, fuel filter and air filter. Did an oil change. I put a little Berrymans in a fresh non ethanol gallon. I sprayed carb cleaner directly into the carb, blew it out with air. It started running pretty quick. It wouldn't idle, sometimes if it was real hot it would, then it would start, idle, i put 10 miles on it.
The next day it acted all gummed up again, I put more Barrymans in, it started, ran about 15 seconds then stalled. It would stay running with a touch of throttle, once hotter it idled a little rough. I let it sit for 20 minutes idling and it got better and better, I thought I was cleaning it out.
The next day same thing, started stalled after a few seconds, runs with a little throttle, gets hotter, gets better.
Now the questions: is the automatic chock not working possibly? Is there crap in the bowl/low jet making it not run when cold?
At 4000 feet would a leaning of the mixture with the idle fuel Brass D screw on the carb be in order? Could I need a re-jet for the low, like a smaller jet, because I'm too rich, and that makes it not want to idle cold?

I'm 165 and even not running right, at 4000 feet, it hit 39 indicated up a slight hill, so I'm close to correct, I think.

Any ideas/experiences are greatly appreciated and thank you in advance for any reply