The clutch is in the oil, and after the bike has sat for a while (as little as 4 hours) the clutch plates can hydro-lock just from the surface tension of the oil.
Its normal when you get on the bike in the morning or after work, if you pull the clutch in while in gear you cannot move the bike, and if you start it, it will lurch. If you start it in neutral then shift down to first with the clutch in, it will also lurch. Always hold the brakes on when you first kick the bike into gear while its running. Once the surface tension has pulled free it should not keep doing this. Another way of saying this, its like licking a suction cup and sticking it to a window, it really sticks. Whether the clutch lever is in or out, if its stuck its stuck till you jar it loose.
Its also normal for a bike to be harder to push in gear with the clutch pulled in, than in neutral. You are spinning the whole transmission when the bike is in gear, and the clutch does have a bit of oil drag, and its spinning pretty fast with you just pushing the bike in first gear. When you have to move the bike its easier to always put it in neutral.
having said all that, the clunking is still not normal, you got something in there that needs attention. It could be something simple, so there is no point getting worried till you find out what it is.
Last edited by KCW; 06-12-2017 at 10:09 PM.