So I have a 2007 400 rancher that sat for about a year, it is owned by a friend. Ran fine before that. When I got it it wouldn’t run at all, carb had a bunch of gelled fuel in it. I have cleaned plenty of carbs in my life. I removed the carb, cleaned it with carb cleaner and and compressed air. I removed the main, pilot and idle jet and made sure they were clean. The motor runs and idles great when it is cold, as soon as it warms up it will not idle anymore. When you rev up the theottle and let off it does when it comes back down. It also dies when you are driving and let off the throttle and it tries to come down to idle. Once again no issues in the first 5 mins of run time it will come back down and idle fine. Increasing the idle just causes it to idle really high. So I believe I have an issue with the idle circuit. Now pulling up a little on the choke and pinning the choke in place will fix the issue. I believe the choke richness up the idle circuit and that’s how it works. So I would assume that the motor is fuel starving at idle when it’s warm? Just not sure why, I have cleaned the carb twice now and have blown the passages out with compressed air. How do you get the Fuel Screw out by the way? It doesn’t have a Flat blade slot in it, just sort of a D shaped bottom on it that you can’t grab because it is recessed a little into the body of the carb? Should I just take the dremel and cut a slot into it so I can remove and clean it? What am I missing?

So I have a 2007 400 rancher that sat for about a year, it is owned by a friend. Ran fine before that. When I got it it wouldn’t run at all, carb had a bunch of gelled fuel in it. I have cleaned plenty of carbs in my life. I removed the carb, cleaned it with carb cleaner and and compressed air. I removed the main, pilot and idle jet and made sure they were clean. The motor runs and idles great when it is cold, as soon as it warms up it will not idle anymore. When you rev up the theottle and let off it does when it comes back down. It also dies when you are driving and let off the throttle and it tries to come down to idle. Once again no issues in the first 5 mins of run time it will come back down and idle fine. Increasing the idle just causes it to idle really high. So I believe I have an issue with the idle circuit. Now pulling up a little on the choke and pinning the choke in place will fix the issue. I believe the choke richness up the idle circuit and that’s how it works. So I would assume that the motor is fuel starving at idle when it’s warm? Just not sure why, I have cleaned the carb twice now and have blown the passages out with compressed air. How do you get the Fuel Screw out by the way? It doesn’t have a Flat blade slot in it, just sort of a D shaped bottom on it that you can’t grab because it is recessed a little into the body of the carb? Should I just take the dremel and cut a slot into it so I can remove and clean it? What am I missing?