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Engine runs when fully choked once you put load on stalls out

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You have dirt in the jets of one or more carbs. Remove them spray them out with carb cleaner spray and blow out all the jets and passages with high pressure air. Since you gave no make, model or year I am giving you a generic answer which would not apply to any fuel injected engines only carbureted ones.

Posted on Dec 16, 2016

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Chevrolet Caviler 2.4 - 2000 Stalls at idle (stopped) once car is fully heated up.


Check coolant temp sensor. These fail often and cause all kinds of mystery problems. This unit acts much like a choke on old carb engines and can fail in different ways. Most common (I think) they fail such that the ECU thinks the engine is cold when it has begun to warm and thus the ECU delivers too long a pulse to the injectors so that the engine runs way too rich. I think it is also possible for the sensor to fail at any point between cold and warm such that the fuel mix is wrong except for the particular temp at which the sensor is stuck. Also O2 sensor has some fuel "trim" input.

Feb 26, 2015 | 2000 Chevrolet Cavalier

1 Answer

Will not stay running after choke closed


Hi, Anonymous and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting ***** set too low.
8. Air/fuel mixture ***** set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
For more information about your issue and valuable "Free" downloads that you will need please Click on the links below Good luck and have a nice day.
Re Bike will not idle with out choke Road Star Forum Yamaha Road Star
Oakys Garage Carb clean Pilot Jet clogged Won run without Choke Carbs 101
http://www.yamahaventure.nl/pdf/servicemanualxvz13tf.pdf
OEM parts for Yamaha
http://www.yamahaventure.nl/pdf/ownersmanualxvz13tf.pdf

Apr 22, 2014 | 2007 Yamaha Royal Star Venture

1 Answer

Simplicity 16hp Briggs stalls


Check the slow running jet for glogging, set the mixture screw 2 turns from fully closed and make sure the small filter connected to the fuel tank is not blocked.

Mar 29, 2014 | Simplicity Garden

1 Answer

1991 F350 w/460 cu starts but runs rough until warm.


sounds like auto matic choke problem try a manual choke

Jan 02, 2014 | Cars & Trucks

1 Answer

I have a 24" snowblower that surges after 1 minute of running, after 3-4 minutes stops and will not restart until several hours later, does the same thing over and over


This sounds like a choke issue. Do you have a choke on that engine?

The purpose of a choke is to allow for a varying air:fuel ratio depending on how hot the engine is. A cool engine needs a more rich mixture of fuel to air. Once the engine warms up, it runs best with more air. The Choke is a mechanism that allows the operator to manually adjust this mixture. Generally, the choke is closed to start a cold engine, then is opened in 2 or 3 stages as the engine warms up. As the operator, as the engine starts to run smoothly, you would actuate the choke to the next notch, changing the fuel:air ratio so more air is mixed in with the fuel. It's probably best to give the engine a few minutes to warm up while you progress through the choke stages until it's fully open providing the best mixture for operation prior to beginning to clear the snow.

If you follow that process and the engine stalls when the choke is opened, then you need to clean your carburetor.

Oct 18, 2012 | Garden

1 Answer

Johnson outboard stalls when it warms up


Little Johnson outboards are famous for being very easy to start, So- first pump up the gas, then set the throttle open to the neutral stop -pull thru once -then set the choke to fully closed (look down the carb and see if it is) and pull thru 2 more times- open the choke. try again --If it is not running by now you have a bad ignition, or the engine has no compression. - very likely if you are running the wrong spark plugs. You may have some shattered reed valves.

See if the spark plugs are getting wet with fuel.

Sep 08, 2012 | Boating

1 Answer

2nd use of chainsaw pp3516avx, it won't start, choke lever will not stay extended. I followed the instructions to start and nothing works


The choke system is connected to the half throttle position, if you lift the throttle trigger the choke pull will automatically return, whilst trying to start do not lift the throttle trigger, the starting procedure is, pump the primer bulb as many times as it takes to 3/4 fill the bulb, pull the choke pull fully out, this will switch the saw on and engage the half throttle, crank the engine until it fires once, do not continue to pull,it will actually not run on full choke, if you do continue to crank with the choke fully out, you will very quickly flood the engine, now push the choke fully in, now crank the engine until it fires up, lift the throttle trigger once, this will dissengage the half throttle, and it should now come down to idle.

Mar 19, 2011 | Poulan Pro 16-Inch 38 cc Anti-Vibration...

1 Answer

ONAN GENERATOR STARTS THEN ONLY RUNS WITH CHOKE ON


Hi,
This sounds like a problem with fuel settings or dirt in the jet.
If you can find the carb adjustment screws, with it runing on full choke - screw it in fully untill it stalls, then back out to original position, then restart.
Take off choke and adjust setting untill it runs well when warm with choke fully out.
You can then try and make it run leaner without stalling.

Feb 07, 2010 | Watts Onan Portable Generator - 4000 ,...

1 Answer

I have trouble initially starting my MTD Yardbug mower. Once going, the engine runs great, but it seems like when the throttle lever is set to choke, it doesn't actually choke. I usually have to either...


Sounds like your throttle cable is out of adjustment (i.e. when you put the carb in choke position is doesn't actually go into choke).

Aug 24, 2009 | Garden

1 Answer

Engine stalls out


sounds like a dirty carb or need to rebuild the carb, adj valves, new plug, do a tune up

Oct 20, 2008 | Sport & Outdoor - Others

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