Hey everyone, first post, I'm new on this forum. I picked up a "classic" Honda recently and decided to tear into it because it wasn't running right. I just rebuilt my carb on my 1983 Honda Accord and after I put the carb on, the car idles at 2K and runs rich. It also doesn't like to shut off, it seems to have no vacuum at all in the vacuum canister, one of the lines that comes off it is completely dead. Any gurus out there know where I can start with this? The internal vents are also stuck on hi/lo because of another vacuum issue, which may or may not be related to the current one. I have been replacing bad lines all over this thing already but can't figure this out. Any help is appreciated, she is my project for now, but I wouldn't mind a shove in the right direction.

 

well we got the high idle issue worked out. There were a couple lines disconnected which actually had no effect, but the kicker was that the choke was disconnected. On other vehicles I have worked on this has not been a problem but the little Honda wasn't a fan of this. There appears to be a large vacuum problem that I can't track down, but the timing also seems to be very far off. It is adjusted fully to one side. Moving it anywhere makes it run horribly. I'm going to change the timing belt and see what happens. So far it seems to be running ok, the exhaust smells pretty nasty though :10q:.

 

Well it has come down to removing all but the necessary vacuum lines and plugging them in one by one. I found a major leak in the dash where the HVAC controls are connected to the main vacuum system. I just plugged it up for now. I adjusted the valves as it needed to be done and adjusted the float in the auxilary fuel bowl, now the car is running worse under light throttle better under heavy throttle. The quest continues to fix this old thing haha

 

We disconnected now the mechanical choke (electric choke has been disabled the whole time) and now it idles low and rough when cold, and smooth and high as it warms up. There is a period where it idles perfectly before it reaches operating temperature, so something must be controlling it somewhere, gonna have to chase that down later on. However now the car runs like a raped ape under heavy throttle, it has very decent pickup and can reach full RPM in first and second gear. There is ocassional ping which I think is a timing issue but am still figuring out. I am going to keep posting just in case this benefits someone someday, and to keep a record of the changes haha. Cheers to the mighty old honda! We will see how the fuel economy is. She is still emitting quite a smelly exhaust.

 

Post some pictures man! Love the classics