vacuum gauge to solve idle issue

Not for what they want for property out there lol.
I should have some time friday to take a look at it. I thought choke too, but it had a credit card thick gap. I read thats proper gap?
Thanks.
Steve....Every engine's different....they all want what they want: timing, carb, mixture, etc.. A creit card gap is a bit too closed. Try backing off the choke butterfly setting a bit on your next cold start and see if that helps.