choke

Picked up an 81 750c a few weeks ago. I’ve just started tearing into the carbs, and have ran into my first issue. The carb choke barrel assembly is stuck. I was able to remove the choke plates without any issue on all 4, and the shaft came out of 3 & 4 with relative ease. However It seems to be...

I have a 1991 CB 750 Nighthawk with 11K miles. Once warmed up, the bike runs very strong, although it hesitates a little bit when hitting throttle fast from idle. The problem is that when I start it cold with full choke on, it will only run on two cylinders (first and second from the right)...

When I pull up on the choke, the butterflies close and it idles higher. Push the choke down, the butterflies open, and it idles lower. This makes no sense to me. As a side note, the bike already idles too high (4500-5000) so I know the carbs need tuned bad. I’m just confused as to how...