Question about Cars & Trucks

1 Answer

My toyota corolla 1986(wet look) 1.6gl automatic splutters on take off,and butterfly on carb does not close when engine is cold.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Cars & Trucks Master
  • 50,033 Answers

Adjust the auto choke setting. there is a black plastic looking cap on the side of the carby in line with the choke butterfly. It should have a metal ring around a step held by 3 screws. loose these screws and turn the cap until the butterfly closes. You will find directional arrows on the cap which are richer or leaner. You will have to turn it in the richer direction. Ther will be a stepped cam that interacts with the throttle butterfly and you will have to ensure that when the pedal is pressed the choke butterfly closes . This sets the throttle open setting so that you dont stall the engine from 2 much choke.. Inside the cap is a bi metal spring that loosens off as the engine warms up so it is not necessary to put to much tension on the spring (what you are doing by turning the cap) as the choke will stay on longer than necessary and that chews fuel.

Posted on Jan 23, 2013

  • 2 more comments 
  • BYRON KNOCK Jan 30, 2013

    Hi,thanks for you solution...this helped me with the butterfly,it works correctly now,but I am still having the problem with the spluttering which sometimes causes the engine to cut out.This only happens when I accelerate from a stop position or almost stop and then accelerate...can you please help as my wife uses this car for work...thanking you in advance....Byron

  • Bill Boyd Jan 31, 2013

    Glad I got something right. Next problem I suggest that the accelerator pump circuit of the carby is faulty. Check this by taking of the air cleaner and with the motor off push down on the pedal and watch for a squirt of fuel into the carby. This pump gives extra fuel into the manifold when accelerating to compensate for the fact that when the throttle butterfly is opened the vacuum drops and the fuel is not drawn into the manifold until sufficient revs is obtained to make the main jet work It may mean the carby off and a clean and new kitk

  • BYRON KNOCK Feb 04, 2013

    Hello got a carb cleaner from Autozone and added it to my fuel....what I noteced when checking the air hoses is that two hoses were broken off from that small plastic fitting that looks like a filter,one was broken off from a fitting that is on the manifold(it has a pipe comming out and the other is blocked)now the car idils and revs like a harley motorbike and I have no power at all.I managed the glue both pipes back on,but it still has no power and revs like a bike...

  • Bill Boyd Feb 05, 2013

    REplace the fitting that is broken and the hoses also..Carby clean is not the way to go as there is a daaphram in the pump and 2 check ball valves . You have to pull the carby down to fix it.



6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 1990 Toyota Cressida Engine Swap

what is required to put a 6mge engine in a 1986 cressida?

Posted on Mar 20, 2009

  • 1 Answer

SOURCE: 2004 totota corolla reset engine light

You need to disconnect the negitive lead to your battery for at least 5 minutes. This allows the system to reset.

Posted on Apr 28, 2009

  • 18 Answers

SOURCE: 1988 toyota corolla, carb, automatic, idle

Check for vacuum leaks at carb.

Posted on May 08, 2009

  • 2004 Answers

SOURCE: 2001 toyota corolla engine trouble

Take a look at the fuel system. That is the fuel pump, filters and spark plugs.

Also go for a scan.


Posted on Sep 19, 2009

  • 2 Answers

SOURCE: 1986 toyota corolla 2E engine high fuel consumption

why does my normal rpm always bug down when the engine start?and when I started to use the air con, the rpm was playing. It doesnt go on a certain point. it always range at 800rpm then it will down to 700. what am I might do to solve this probem?

Posted on Mar 13, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

1986 Toyota p'up starts, but won't stay running once i left off gas pedal

first i would look for a vacuum leaks get it as close to idle as you can when cold and spray carb cleaner around and also check to see if the egr valve is stuck open this will act as a vacuum leak but not detect as one spraying carb cleaner around carb cleaner with change the engine speed near a vacuum leak

Apr 18, 2012 | 1986 Toyota Pickup 4WD

1 Answer


Its BOTH, sort of....TBI Throttle Body Injection. If you look into the carb with engine running, you will see the injector spraying fuel onto the butterfly.

Aug 23, 2011 | 1986 Nissan Pickup 4WD 1986

2 Answers

1986 toyota corolla 2E engine high fuel consumption

why does my normal rpm always bug down when the engine start?and when I started to use the air con, the rpm was playing. It doesnt go on a certain point. it always range at 800rpm then it will down to 700. what am I might do to solve this probem?

Feb 18, 2010 | 1986 Toyota Corolla 2 Door

1 Answer

1984 toyota corolla 1.6 engine. How do i adjust

Carbureted models have a fast idle cam on the throttle,It is a screw that sets against a movable part,called the cam,when the engine heats up,the cam will drop upon tapping the gas pedal.Set the carb,while the engine is cold,by tapping the gas pedal,then adjust the fast idle cam screw by turning it in,with the engine running.Start out by turning the screw in a full turn before starting engine so it will run,then adjust the screw as the engine runs.

Nov 26, 2009 | 1984 Toyota Corolla

1 Answer

1986 vett

Your automatic choke is probably sticking. Spray it out with 2+2 Carb and Choke Cleaner. Do this when the car is cold so you don't start a fire. While the car is running see what position the choke butterfly is in when the engine is hot. If it is partially closed you may have a bad spring in the choke mechanism or it may need an adjustment.

Oct 10, 2009 | 1986 Chevrolet Corvette

1 Answer

Choke won't close all the way down

I'm not exactly sure about the 1987 toyota choke, but the basic concept of a choke is that the butterfly(flap in top of the carburetor) needs to close to allow less air and more fuel to enter the intake when the engine is cold. This is acomplished on most carburetors with an electric choke thermostat. The thermostat has a bimetallic spring that is would up and connected to the butterfly through a rod. The bimetallic spring is made of a special allow that expands and contracts as the temperature changes. Usually through a relay of some sort 12v or less is applied to the choke thermostat with the engine running and used to heat the spring therefor releasing tension on the closed butterfly. It sounds like your butterfly is never opening as the engine is warming up, and staying on fast idle. See if there is a wire on the thermostat and remove it and check it with a voltmeter with the car running, there should be >8vDc. If there's voltage then the thermostat is probably faulty(as long as the linkage is ok) If there is no voltage, check the fuses and fuse links and then consult a schematic to see where the voltage is suppiled from/to, could be a faulty relay as well.

Aug 20, 2009 | 1987 Toyota Pickup

2 Answers

86 toyota corolla, dies at stoplights and idles rogh

well you could try to get a vacuum gauge and see if your car reads what it supposed to and if you buy one it could tell you what it could be.

May 20, 2009 | 1986 Toyota Corolla 2 Door

1 Answer

Toyota Corolla 1.6 1986 4 door hatch. Cold starting

Choke is round black device on side of carburetor near the top,when engine is cold take lid off air cleaner,see if flap is closed all the way.If not remove air cleaner and adjust choke by manufacturers instructions.Timing is not your problem,it has its own set of problems and symptoms

Oct 20, 2017 | 1986 Toyota Corolla 2 Door

1 Answer

Vacuum lines for a 4a-c 1983-1986 SR5

You can get a carb./vacuumhose-setup printout at Toyota dealers...;)

Oct 03, 2008 | 1983 Toyota Corolla Deluxe

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

169 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts


Level 3 Expert

79123 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

john h

Level 3 Expert

13723 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides