Weldangrind, About 5 hours on the Rhino. Running very lean with the stock carb. Checked the plug about an hour ago and its now too rich, very sooty plug and very strong exhaust smell. Idle screw backed out 2 1/2, same with air mixture screw. I changed the pilot jet to 22.5 and the main to 110. Still the same.... The PCV hose is coming from the crankcase, and since the new air filter does not have a nipple to connect it too, it’s just sitting off to the side. I came up with a solution for the choke and that part is now working fine. The spring I mentioned was for the choke, not the slide, which seems to be operating smoothly. Is it possible that the 22.5 and 110 are still too rich at sea level, 40 degrees F.? As soon as I take off the choke, I’m still revving to 2800…… Seems to all go back to the pilot jet?
This is the carb I am using.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
It was shipped with a 100 main and 40 pilot.