Okay oh guru's of all things vaccuum. I know this will be close to impossible, but I need to start somewhere. My left and right idle mix screws do not have the same results when turned. The left carb (shifter side) will kill the engine when turned all the way in. The right carb (chain side) will not- it barely makes a change in idle speed. I have the aftermarket thumbscrews that are exact copies of the stockers from newspeedmaster.com (not the Harley pieces that will "work"). I also just synced the carbs a couple weeks back with no change. Other bits of info- no air box, K&N Pods, 45 pilots, 150 mains, 2 shims on thruxton needles.
My knee-jerk assesment is a leak on the right side. Any "look here first" or "how to find a leak" advice is greatly appreciated.
