First of all, super great fun bike! Can’t imagine many I would enjoy more. That said, it is stalling several seconds after the first cold start. On the second startup it goes to fast idle and is fine, but always stalls after the first start. I tried the popular 12 minute tune and it hasn’t changed. Recently replaced spark plugs and air filter. Could the fast idle screw be sticking and freeing up after the first start? Warm start is great.