Carb works great straight out of the box. No adjustments were needed. Took about 15 minutes to do including taking some photos! I used my original top piece and nut, I put the new spring and slide on. Mine did have the studs. They were a little long but worked fine. I used a lock washer with the nuts to make it look better. The choke lever is different. It is a little hard to get to now, but it will work. If you have gloves on or try to reach down without looking for it, might be hard to do. I am sending a couple of pictures with this email. The carb pic shows the difference in choke levers. The other is of Evan ready to ride! Thanks for such a simple and cheap fix to a problem that has plagued this bike thru the last couple of owners! I also used the complete clutch lever kit. Took mine off and bolted yours to the bars, worked also! Thanks, Chris