It should be idling higher.
Do a few speed passes to clear it out and then let come to idle. Idle should sit fairly high for a few seconds and then drop off (even then it is most likely a tad rich). However it shouldnt sit high enough to engage the clutch.
Search youtube for 2 stage idle, it will give you an idea of what to look/listen for.
Too lean and it will idle way too high and either stall or bog really bad when you hit the throttle. There is also a rich bog. usually happens with a lower idle.
There is a lot of stuff covered at the top of the forum in the stickies. Some engines tune a bit differently but the basics are usually about the same.
I would start with a good idle air gap. This is where a lot of confusion starts.