Yes, that's
exactly what he did.
That's not good enough. All that tells you is that the air flow is matched on the two TBs. It's still not enough air. He has to open up the base air idle screw on one TB, (the one with the painted mark on the screw), then match the other TB to that.
The proven method is to first screw the painted screw all the way in, then back it out 3/4 of a turn. This is documented to be adequate air flow. Now that one TB has more air flow at idle, it becomes the new baseline. Now he has to match the other TB to that new setting, which will in turn give the other TB equal and greater flow than it has now.
That's only good the first time. A cheap balancer will pay for itself many times. This is routine maintenance stuff. You'll want to do it again in another year, just to check that they are still balanced and tweak them into balance if they are not.
Great, I used to live in P-town. Add it to your profile. It gives context to your comments and questions and makes it easier for people to help or understand your point of view.
You're not getting what I'm trying very hard to explain. Balance is only part of the equation. Too little air at idle is still balanced. It's about getting more air flow at idle. Yes, you still want the two TBs balanced, but at a greater air flow.
The fuel doesn't go thru the TBs. Only air. Fuel goes thru the injectors directly into the combustion chamber. You don't need to adjust the fuel. Therefore, the way you control and adjust idle and create a stable idle so it won't die is to adjust the amount of air going thru the throttle bodies when the throttle plates are closed, I.E. at idle. that's what the idle air screws on TBs are for. Those are the screws being adjusted to balance the TBs.
If you do it yourself, you'll know what's being done. You'll have the ability to try more airflow if your first adjustment doesn't work. The Factory procedure doesn't call for doing this. The mechanic isn't going to do this on his own w/o direction from you, (and then he still may not do it).
MotionPro $99
Morgan Carbtune $60 CarbMate $130
Consider signing up for the
Oregon Biker Scum email listserv. There are a lot of good people there that are very knowledgeable and someone likely has a manometer tool that would be willing to help you do the job yourself or even do it for you for beer or lunch. They aren't hardcore bikers, most are computer nerds that ride. OBS is somewhat tongue in cheek for the name. I was on that list for years between 2002 and 2011, before I moved to Southern Utah.