So sync them with a drill bit. Here's how....warm the bike up. I ride for about 15 mins. Then pop the carb elbows off. Grab a bunch of small drill bits. Insert the no business end in the back of the carb until it barely slides under the slide at a 90degree angle, I think i use a 3/16" so have several sizes at the ready. Then take the right size bit to the other side and using the throttle adjust screw, adjust the other side to be the same. It works much better that adjusting on the fly. Then if you need to bump the idle up or down, just make sure to turn the screws the same.
On the air screw i find it easier to take the carb off to adjust.
hardwaregrrl screwed with this post 12-10-2012 at 12:43 PM