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Anonymous Posted on Aug 15, 2012

Twin hs2 su carb linkage diagram

Need the linkage diagram for twin su hs2 carbs

1 Answer

Ronaldbrains

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  • Master 881 Answers
  • Posted on Aug 23, 2014
Ronaldbrains
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YOU dont need a diagram for twin carbys as put them on the manifold back off all throttle linkage and adjustment screws make sure thay are all down, and turn both screws down till they touch, now back off the jets nuts under the carbys and then undo them 2 turns only[thats the ones the choke move up and down] now HB on out of gear a little choke start engine adjust 2 screws 1 more turn each and choke in
make sure you have very thin oil in pistons, then when running adjust jets 1flat at a time when it runs smooth lock up the linkage and adjust screws till idle at 600 RPM.

5 Related Answers

nate hacker

  • 19 Answers
  • Posted on May 21, 2009

SOURCE: NEED A DIAGRAM FOR CARB VACUUM LINES

most of the time it is on the hood in the inside but you can try and get a haynes manual for your car and it usually has one in there

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Anonymous

  • 386 Answers
  • Posted on Aug 11, 2009

SOURCE: need vacuum diagram for 1974 vw beetle with 34 pic carb

Depending on your carb, distributor and transmission, you have from zero to two vacuum hoses. If you have an Autostick transmission, there's a vacuum hose running from a port in the intake manifold to the control valve on the left side wall of the engine bay. (Hint: if you've got a car that came with Autostick and that someone's converted to manual transmission, the bracket for the control valve is the perfect place for your coil.) Most people don't have this transmission even if their car came with it--it's only a three-speed and it's hard to find parts for it, so most of those cars have been converted to manual transmission. The other hose you might have is for your distributor. The port is on the left side of the carb, and a hose runs between it and the metal vacuum advance can on the side of the distributor. If you have a 009 distributor or an aftermarket distributor like an MSD you don't have the vacuum advance can; if you have an aftermarket carb like a Weber you don't have the port. Therefore...you probably don't have any vacuum lines on your engine.

if only one vacuum line then? the vacuum line goes from the vacuum advance on the side of the dizzy, to the carburettor, just around the throttle linkage if i recall. hope this helps.

David Shaub

  • 2994 Answers
  • Posted on Sep 01, 2009

SOURCE: how to tune twin carbs on a mini from start ? the

First***Stop using starting fluid*** It will destroy your engine.
To set up the carbs, you will need to buy a vacuum balancer. This is a device that will show you how much downdraft each carb has. You then, have to adjust the linkage, so that they are the same. After that, you will need to adjust the fuel mix.
All in all, if you're not experienced in this, it is best left to a carburator shop, not most garages.

Testimonial: "thanks for tip "

Anonymous

  • 288 Answers
  • Posted on Mar 18, 2010

SOURCE: Honda Civic hatchback 1993 twin carb manual

You can find manuals online for most cars at www.autozone.com available free with registration.

If this solution is helpful, please give feedback. Thank you.

cheap repair

  • 1565 Answers
  • Posted on Mar 15, 2011

SOURCE: Looking for a vacuum line

go to autozone.com. become a member. and look up the vacuum diagram for your particular yr, engine, trans, ca or 49 state.

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HOW TO REPAIR THE CABURETOR

Some carbs are simple and some complex but both should be treated the same way.

Remove the carb and thoroughly wash the outside before turning each adjuster screw in and carefully counting the turns until it bottoms (eg 2.75) so the screw can be returned to the original position.

Most carbs need only thorough cleaning and few, if any, new parts.

The carb should be systematically and completely dismantled making drawings and notes during the process and then each component is thoroughly cleaned ensuring all air and fuel passages and jets are clear and use the reverse process to reassemble.

During the cleaning process each component should be examined for wear or damage using a magnifier and replaced if necessary. It is usually wise to replace the float valve and any flexible diaphragms but this isn't always necessary. If water is found inside the carb the fuel tank should also be cleaned.
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My MGB SU hs4 carbs has sticky( not moving) choke rod

To clean an SU carb you will need to remove it. Sorry.
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What type of chrome airfilter could I fit to my 1976 tr7 with twin su carbs.?

Check out englishparts.com and part number 222-245. I think these that these will work for you quite well. You will need 2. Let me know if you need anything else.
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Secondary on my rochester quadrajet 4bbl wont open up

It could be several things. It's quite possible that lack of use has made them hard to open. If that's the case then a little penetrating oil and some gentle persuasion will get them working. The top butterflies work on vacuum so you will have to push on them by hand.
It could be that the vacuum pot on the front passenger side of the carb is not working properly.It should connect by a short vacuum line to the top of the carb on the same side. Unplug the hose from one end, stick a finger over it so you don't lose vacuum. There is a long rod off the back of it that goes to the secondary's that should slide when you unhook and hook it back up.
The linkage on the driver's side should move the lower butterflies. Work the throttle linkage by hand, with the car off, and see if they will open. If they don't then liberally spray the linkage with something like WD-40 and work it back and forth. Spray both sides of the carb at the base and in the middle to lubricate the shafts for the butterflies. Work the linkage and spray and it should free up. Make sure that someone hasn't bent the tab that pushes the secondary's open, out of the way.
If the carb has been worked on lately, especially the choke linkage there are lockouts there. If the choke linkage has been taken off and put back on, these lockouts may not be in the right positions. There is a small tab that drops down when the choke is engaged but it can flop around if not correctly installed. You will need a diagram to get the linkage on properly. Most any rebuild kit for that age carb will have a picture of it.
These are your most likely problems. Hope this helps.
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Looking for carter thermo quad linkage diagrams

You can get them in a carb kit for the carb, also Chilton's or Motor books. You may be able to find one at Haynes or Pederson. They print books on carbs as well. If you have a dealer service manual it will have these diagrams too. You can get that at faxonautoliterature.Hope this helps.
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How to tune twin carbs on a mini from start ? the car wont start unless i use easy start then runs rough and wont idle im not to clued up on these 14/ su carbs any tips? its the old one not bmw

First***Stop using starting fluid*** It will destroy your engine.
To set up the carbs, you will need to buy a vacuum balancer. This is a device that will show you how much downdraft each carb has. You then, have to adjust the linkage, so that they are the same. After that, you will need to adjust the fuel mix.
All in all, if you're not experienced in this, it is best left to a carburator shop, not most garages.
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Very high idling

Hi, try disconnecting the linkage from the butterfly shaft on the carb. You should be able to turn this shaft thru a quarter turn by hand, and self return by means of the spring. If this is not free it may well be your problem. Is it a twin throat carb? then check that the secondary butterfly is closing fully in the throttle "off" position.
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1980 V8 Range rover difficult to start and will not idle. Is fitted with twin SU carbs

Good day,
almost sounds like the car needs to be clean and adjusted. same as the last request what have you done so far?

Cheers
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