Question about 1987 Suzuki Samurai

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Are there any air/fuel adjustments on the stock carb?

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Yes, but they are plugged from the factory, one of those EPA things. I suggest you get a manual that shows what the carburetor looks like. Then you will be able to see what you need to do.

Posted on Feb 22, 2010

  • ojohanson Mar 19, 2011

    Most mixture problems can be cured by carefully going over all the vacuum hoses for leaks. Check if egr valve is seating properly. When is the last time valves were adjusted? How long has the O2 sensor been in use? ( the pin guarding the idle mixture can be driven out after removing the carb)

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Posted on Jan 02, 2017

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motor1258

Mike Butler

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SOURCE: I don't know where the air/fuel mixture screw is on my carb

There should be one screw (I'm assuming it's the Carter YF carburetor 1 barrel) that's by itself away from linkages etc, more to center at base of carb where it meets manifold, that is angled approx 45 degrees going in to base. That should be your mixture screw. What symptoms are you experiencing anyway?

Posted on Apr 04, 2009

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1988 Samurai. Why does the engine die going up hill?


for lots of reasons. how steep a hill, offroad.
50% grade , 99%?
is yours Carb or EFI? 1990 first EFI.
is it still stock, original engine? many are not.
many with carbs, no longer have stock carb. but have weber. as ungrade many do..
just asking for wild guessing, ?
ok, spark plugs are too old.
G(any)
engine cam belt slipped?

some are upgrade to EFI G13 or G16A or B engines.

the stock carb will be bad,, a hopeless case if ever there was... (no kits sold nor parts.)

but lets to the carb hit list.
1: choke stuck on , foods and stalls.
2: float, level all wrong, (will cause too lean or rich , rich is too high) or stuck high.
3: jets all dirty causing horrid lean state.d
4: emulsion tubes (air) clogged.
5: low fuel pressure, or too much if using a usa fuel pump with insane 15psi pressure that carb will fail. or the downgrade to electric pump done wrong. ask me if true.
5: air leaks below the carb cause lean and lack of power,
6: clogged air cleaner or fuel filter.

this is not a guess,
but each takes inspections and testing. fo find it.

Aug 09, 2015 | Suzuki Cars & Trucks

1 Answer

Have a 1965 Dodge Coronet with 225 carb now I switched to a electrical fuel pump but also have the old stock fuel pump hooked up now was can cause my car to run alil funky like it dies or Boggs out after...


Check the fuel level in the carb bowl. You will have to take off the top of the carb, the air horn, to check the level. Also check that the needle valve and seat (which lets gas into the carb) is not clogged or stuck.

You did use a low volume fuel pump? If pump pressure is correct, I would bypass the mechanical pump.

Jul 27, 2014 | Cars & Trucks

1 Answer

I have a stock chevy 350 of which i just installed a edlebrock intake and edlebrock 600 w/electric choke runs good but has delay on initial acceleration after it catches up takes off really well idles well...


I am not sure what type of Carb you have but I will assume it is a Holley ( Most Popular ) The accelerator pump arm on the carb probably needs to be adjusted.It is adjuster by bendinding the end of the arm. Also the accerlerator portion of the carb could be a bad one.The other possibility is the metering jets are too small to feed your demands of your engine on hard aceleration.Or your air/fuel mixture is incorrectly adjusted and it is runnig to lean or to rich.

Apr 26, 2011 | Chevrolet 1500 Cars & Trucks

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I just put on a new rebuilt carburator on my 460 v8 1987 xlt 250 ford truck 4 WH. drive. its a motorcraft stock holley. I cant seem to find a way to ajust it. Wont run smooth or idle? It was set up for...


You have two setting screws on front of carb, You start off by adjusting all the way to the left, Then back off 3/4 turn to both setting screws, Then you have to set your air fuel mixture by just slowly turn your setting clock wise do so until vibration go away. Sorry there is no easy way to explain, Good luck to you,

Apr 03, 2011 | Ford F-250 Cars & Trucks

1 Answer

I have a 87 mustang thats getting to much fuel


if carburetor check carb float level if injected it could need the fuel pressure regulator adjusted you may need an after market fuel pressure regulator even with a carb especially if its not the stock fuel pump

Feb 25, 2011 | 1987 Ford Mustang

1 Answer

22r Carb. misses at ide


Dripping fuel could indicate a badly adjusted float,bad needle and seat,or possibly to much fuel pressure off the pump,if your using a mechanical fuel pump make sure the return line to the gas tank isn't plugged,if your usining an electric fuel pump make sure you have a working pressure regulator,my personal opinion on remanufactred stock carbs isn't very high,if you can return the carb I would highly reccomend replacing it with a Weber 38 DGES,you can get a Toyota conversion kit for around the same cost as a remaned stock carb.

Apr 03, 2009 | 1988 Toyota Pickup

4 Answers

Carburetor Tuning Mitsubish.


As far as i know, original stock carburetor for Lancer 1989-1992 engine 4G15 12 valve is Aisan Variable Venturi. It have 3 screws :
- air-fuel mixture screw
- main jet adjusting screw
- idle adjusting screw

and here's the document you may need :
http://www.mitsubishi-motors.kiev.ua/info.php?id=20
http://www.lilevo.com/mirage/

Good luck !
Winz

Mar 23, 2009 | 1992 Mitsubishi Mirage

2 Answers

22R Carb at high altitude


Yes, Colorado is much higher in altitude. Do to higher altitude the barometric pressure is less than sea level by a long shot. Lower barometric pressure mean that less air is entering your engine. Which in turns mean that your engine is now running richer than it was at a a lower altitude. So I recommend checking you engine timing, and adjusting your carbs air/fuel mixture. yes this means that you may need to rejet. but first there is a screw on your 22r's carb that you must adjust to lean the air mixture just right. I have had a stock 22r carbortor before and never had to rejet it. i probibly should have but it ran fine at sea level and all the way to about 10000 ft. after 10000 feet i had to lean the fuel mixture to even alow the engine to run. This screw that you must turn is hidden due to toyota not wanting you to tamper with it and burn your engine to the ground by running your engine to lean. it has a metal plug on the passenger side of the carb about the size of a pencil eraser. you must drill that out and then you can adjust the air fuel mixture. Clock wise is to lean the air fuel. and Counter clock wise is to richen the air fuel mixture.A good rule of thumb is to turn the air/fuel screw all the way clock wise and then back out about 2 and 1/2 turns. That is the factory adjustment. you may only need 2 turns out. Best of luck i hope you get it running perfect. Try this adjustment first then if it still runs rich then think about rejetting.

Here is a picture of what i am talking about.

#1 is the air/fuel mixture, #2 and #3 are cold and warm idle screws.
#4 is a A/c idle adjustment.

5ff308f.jpg

Sep 04, 2008 | 1987 Toyota Pickup

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