I think it's around 1100 rpms but since we have the same bike, you don't have a tach either right? Make it idle as low as you can without being close to stalling. If you run the bike with the clutch cover off, you can watch the primary clutch sheave start to move towards the belt. Keep your idle well below that.
The idle screw is on the left side of the carb. Just look in under your left side panel and you will see a large thumb screw. Clockwise raises your rpms....
Mine does rev higher when my choke is pulled out , but it starts to choke a bit soon after it starts. I then have to push the choke back in and stay on the throttle for about a minute before it idles on its own. I'm planning on taking the carb apart this summer to clean it and replace gaskets and jets.
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