Hey guys, I just did the uncorking mods to my 650 and now I can't get it to start. It has fired up long enough to light the lights about three times and It does backfire every now and then. I think I may have gotten a part wrong in the carb. The little thing that you can see at the bottom when you look in the carb that the long pointed needle slides into is my concern(needle jet?). If this is upside down, would that cause it to not crank? When I got the one that was in there out it fell out before I could see which way it went. Right now, If the carb is right side up, the larger hole is up, into the opening where you can see it. The way I could tell is I slid the long needle into it and with the smaller hole up the needle would bottom out sooner than it would the other way (out of the carb, just looking at it). I thought it looked like it fit better with the peice that screws aginst it that way(needle jet holder I think). Now I'm thinking that was wrong and the smaller hole goes up into the opening, I just need someone with experience to let me know. I did the mod mainly for the cooler running and easier starting so I'd really like to get this thing fixed. If I have to I'll get the edelbrock carb, but if I could get the stock one to crank halfway decent I'll save the money for gas. Thanks.