My previous threads on this 41mm Mikuni flatside carburetor for my '94 XR650L Supermoto here: http://www.thumpertalk.com/forum/showthread.php?t=462925 http://www.thumpertalk.com/forum/showthread.php?t=478084 Hooking up the throttle cable turned out to be fairly easy. The brass colored fitting inner diameter was supposed to be large enough for the cable stop to pass through, so I had to drill it out. Everything hooked up well after that without issue and the throttle cable also worked well. Here's two pictures of my setup: The first start took a bit of cranking, one I'm assuming to get the fuel flowing (intake is lower than petcock, but the hose routing has an upwards bend). I pulled the choke up (left side of carb). It started immediately. Then idled hesistantly at lower rpms. I pushed the choke back down and it idled faster. Throttle response was crisp! At least when compared to the dying and bogging tendancies with the stock carb and setup. However, it seemed to idle a bit too fast. I assumed the screw on the right side (just above the pink hose) was for the idle adjustment speed, since it's the only external adjustment available on the carburetor. Turning the screw far left or far right had no noticable effect on the idle. So, what is this screw supposed to do and how do I adjust the idle speed of this flatside? Also, I remember choke idling faster than no choke. Did it idle slower because it's fairly warm outside at 70 degrees? My next response will include the internal setup of this flatside as provided by XRs Only.