I recently restored my (wife’s) 1981 CM400A Hondamatic, which included a full carb sonic clean and rebuild. It runs absolutely like new with one minor exception. If I set the idle below a certain point the engine will idle perfectly fine in every other circumstance, but will stall every time I stop. It seems like about a second after I stop, the idle RPM dips slightly, and if I have it set too low, this will stall it. If I turn it up a little higher, I still hear the dip, then it comes back up to normal, but it’s high enough to not stall it. I’m assuming it has something to do with the torque converter disengaging that’s causing the the brief idle dip, but thought I’d post to see if anyone has experienced this and/or knows a fix for the idle dip. I wouldn’t bother with it except that turning the idle up just that little bit causes me to have to hold the bike back just a little, or it will inch forward. Not a strong pull, but it’s there. If I turn the idle down that little bit, there is no pull forward, but then it stalls on each stop.