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**CatatonicBug** · 03-07-2010, 05:18 PM

That's not what opens/closes with the enricher. The holes in the carb body are 3 tiny pinholes, right where the butterfly valves close agaist the carb throat. One hole opens with each position of the enricher rod. You can pull the enricher rod, and unscrew the valves from the carb bodies (you can remove #1, but #2-4 will not come all the way out), and spray carb cleaner behind them to clean in there.

Just be careful when you pull the rod, as the detent ball in the #1 carb is spring-loaded (I have one in #1 AND #4) and like to fly into oblivion when you pull the rod. I found that placing the carbs in a paper bag will capture the flying balls/springs quite nicely.

**DGXSER** · 03-07-2010, 06:14 PM

Actually, that is what opens when you pull the enricher rod out. The rod slides that brass valve in that photo to open that hole up.

Based upon what you have described, have you tried loosening the set screw where the bracket around the enricher valve attaches to the rod?

Assuming that answer is yes, I would suggest you remove the nut on the side of the valve holding it into the carb body and slide it out as far as you can, then spray the crap out of it with carb cleaner and use a small brush of some kind and a pick with the end bent to try and get into there. May be a bunch of gunk in there clogging it from sliding all the way in. JAT.

**XJ Rob** · 03-07-2010, 06:24 PM

So what exactly am I looking at then?? All of the valves have a spring inside. When I pull the rod. The brass valve moves and opens the hole seen in the pic. I did see the small holes in the body you mentioned. So what is the big hole in the diaphragm area for? I did pull the rod in hopes to be able to pull that valve out but did find it was too long to come out. There were no detent balls anywhere that I saw. Should this hole (in the diaphragm area) be completely sealed.
I pulled #1 valve out and this is what it looks like. I assume that the narrow"Pin" slides into a hole that right now has crud in it. It may be easier to break the rack and replace the O-rings between the carbs where the fuel lines connect.

I'm not trying to be a PITA. I just don't want to pull these back apart AGAIN.

**DGXSER** · 03-07-2010, 06:34 PM

Yep, that is the enrichment valve. And yes, I agree that the hole the rod should go into is plugged up. While you have the no 1 out, spray some carb cleaner in the hole the small rod goes into and see where it comes out. probably where C-bug is thinking.

**Larrym** · 03-07-2010, 07:14 PM

AWOL Spring and Ball??

Project1100,

So what exactly am I looking at then??

Thats it: just a movable "slug" with that skinny post on the end which opens or blocks the orifice/channel inside that protuberance immediately to the left of that black arrow in your first pic.

So what is the big hole in the diaphragm area for?

Don't taze me if I'm wrong here cause it's been a while since I've had my face there where your at. The diaphragm is operated/controlled by the engine generated vacuum: raises and lowers. The slide along with the attached needle goes up/down to accomplish the "Constant Velocity" magic trick. So the hole your looking at is either a port to the vacuum source or to the other side of the equation: a vent to ordinary atmosphere.

(Note: you gotta see TC's you-tube video of these slides running under load..)

No fears in separating the rack and fuel Tee leaks: there's plenty of options for dealing with that. Don't let this make you keep the rack together when they really should be separated to address a problem.

Ya Got me about the missing ball and spring. They should be there. If they're not then it's possible that they've gone Elvis on you without you catching them.

**XJ Rob** · 03-07-2010, 08:57 PM

Originally posted by Larrym View Post

Project1100,
Ya Got me about the missing ball and spring. They should be there. If they're not then it's possible that they've gone Elvis on you without you catching them.

Ok what do these "Elvised" Ball and spring do exactly? I don't even see where they would go. Is it possible that the choke set-up is different on the XJ compared to the older XS?

This is the end of the rod at #1 carb

This is at the end of #4

.

I'll pull the rack apart tomorrow and clean out every orifice and hole I find. But i just don't wanna lose anything and I want to replace anything that should be there that isn't.
Thanks for all the help.

**DGXSER** · 03-07-2010, 09:03 PM

It looks like you have no place for the little ball and spring. The purpose of the parts is to lock into corresponding detents in the rod as the choke is pulled out, to hold it out until the bike warms up. Without them, on the XS models, the choke/enricher lever will just pop back to closed position as soon as you let go the lever.

If you look at Carb no 1, where the rod goes through the body of the carb, just to the bottom in your pic, left in actuality, of the mixture screw tower, is where a hole would be in the carb body to put the spring and ball into. You have no hole, so no way for the items to be put in there.

**Yard Dogg** · 03-07-2010, 09:06 PM

When the enricher valve slides out as you are describing, it opens up 2 ports inside for half choke, or full choke. As long as the enricher valve covers the half choke all the way when closed, you shouldn't need to worry about the enricher valve closing all the way. I know it feels like an irritating booger, but it's not life or death. One of mine doesn't close all the way just like yours. If you look at them when they are all closed from the outside and the shafts are all even, I would blame a casting flaw on the carb bodies. There may be nothing you can do about it.

**CatatonicBug** · 03-07-2010, 10:48 PM

Wow! Those ARE different carbs that the XS! (a little bit anyway) Are the XJ carbs ALL that way?

That clutch cable guide on the end of the enricher rod is an interesting addition. I don't see where the choke lever would attach to the rod though... Maybe it's just late and by brain's not functioning properly.

**crazy steve** · 03-08-2010, 12:02 AM

Originally posted by CatatonicBug View Post

That clutch cable guide on the end of the enricher rod is an interesting addition. I don't see where the choke lever would attach to the rod though... Maybe it's just late and by brain's not functioning properly.

This must be a handlebar-mounted cable operated choke; you may not need the detent balls if there's enough friction built into the system somewhere else..

'78E original owner

**Larrym** · 03-08-2010, 04:28 AM

Elvis wasn't here??

Project1100,

Thanks for the pics. Sure looks like there really aren't any spring-n-ball detents or the containment channel they ride in. (Unless you're really, I mean really good at photoshop.

)

That set-up (detents) is how the rod holds its position against the pressure of the 4 springs on the slugs themselves. That lets the rider choose the half and full enrichment settings without having to reach down and hold the lever. (Yeah...useless info to you cause obviously your set-up must use a different method.)

So in this case Elvis has not gone over the hill: AWOL.

He wasn't even there in the first place.

Is this the way it's done on all later models (XJs)??

If not then I'd guess that at some time the original carb 1 body was replaced with a carb from the usual #3 position. I've always seen at least one detent on the rod. That is til now.

**DGXSER** · 03-08-2010, 06:32 AM

I missed it was an XJ, IIRC, never owned one, all XJs use a cable operated enrichment circuit. Its the one real difference in their carbs over the XS carbs. (later model ones anyway.)

**Yahman** · 03-10-2010, 12:01 PM

Rob is talking about his XJ1100 and they don't need any little balls and springs, there is enough friction in the cable assembly to keep the choke valves open.

IIRC... When the choke is applied, some of the vacuum from in front of the butterfly valve is fed to the top of the diaphragm through that hole pointed out in the photo. This in turn opens the diaphragm just a little and increases the rpm's.

The choke valve needs to be seated properly so that it doesn't interfere with the functions of the other circuits in the carb.

Larry

**randy** · 03-10-2010, 12:48 PM

IIRC, the vacuum signal for raising the slide comes through the oval opening at the top of the inlet bell ?

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