Question about John Deere Garden

1 Answer

JD LA140 quit running all of a sudden. It was directly after I added older gas to it as the tank was almost empty. It won't even almost crank as if it isn't getting fire. However, the plugs are firing and the gas is getting pumped to the carb (checked by removing fuel line and turning motor over). I was thinking electrical since the motor does not seem to attempt to crank, it just turns over good. I can I determine whether: 1. it's electrical, 2. jet stuck in carb, 3. bad gas (wouldn't it almost crank off and on with bad gas?)

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 755 Answers

First thing. Dump the fuel! Pull the fuel line ahead of the fuel filter and drain it all off! Old fuel is sometimes accompanied by a lot of water. Especially if stored without proper container closure.

Next, drain the carb bowl. The carb bowl should have either a drain screw in it or the bottom of the bowl has a hex head fitting to allow the entire bowl to be removed. Take off the bowl and get rid all the fuel inside it. Look for water droplets that sit under the fuel on the the metal surface after the fuel has been poured off. If you have the bottom hex fitting type carb look at the barrel of this fitting. That is where you main jet is! You can use a fine piece of metal wire strand and clean out this jet. The holes are generally on the side *(if the jet has a bottom adjustment screw built in than it also has a hole in the center. Run the piece of wire through where you see dark spots and see if they clear out. Look through the jet and see if your handywork is allowing light through. *(yes? than you found a blocked jet and just cleaned it!

Now, put the bowl back on. reconnect the fuel line and put some fresh fuel in it. You might want to recharge the starter battery since you have probably cranked the battery down from all of this.

You can check for spark by getting another spark plug and using it as a tester. Leave the engine plug in place and just lay the tip of the plug on something meta/grounded and see if there is spark while cranking.
If you find spark this rules out a bad ignition system. Put the spark plug boot back on the plug on the motor and start it up!

If you can take off the air filter and look into the carb you might want to try putting a little bit of clean gas right into the carb opening. This will help prime the motor and perhaps get it running enough to eject the remaining water inside the intricate spaces in the carb.

Be careful and good luck.

Posted on May 25, 2010


1 Suggested Answer

  • 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.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Ran out of gas in 2014 Taurus SeL. Added gas (plenty). Now Cranks but will not start. No problems, running well before this (replaced battery a few months back.) any quick tips/suggestions?

When you run very low on gas or even worse run it empty it overheats and can destroy the tiny electric fuel pump inside the gas tank, the pump requires fuel around it for cooling and for lubrication purposes. So I strongly suggest you check the fuel pressure at the pressure test port in the fuel injection supply rail that is over the injectors, I bet there is no pressure.

Jan 31, 2017 | 2014 Ford Taurus

1 Answer

John deere L100 cranked over...wouldn't start...out of gas....added gas, now wont crank over at all

Thou has drained the battery with all your cranking. Recharge unit and now check for spark since you have resolved the fuel delivery issue.

Mar 14, 2016 | John Deere Garden

1 Answer

Dewalt Mk246 won't run. , It's Brand Nu was

This is a common problem with this compressor and still is a problem in 2014.It is under powered and trips the reset

Apr 21, 2013 | Air Tools & Compressors

3 Answers

2004 z71 tahoe when the gas gauge is at a quarter of a tank it won't crank. It acts like it is empty with gas.

Check your fuel filter if it needs replacement. Empty it out then connect it back. Try to start it again. Inspect the fuel filter if it filled with gasoline. Check if there is noise at the fuel tank to check if the pump is working. If it did not, inspect the fuse for your fuel pump and the relay. If both are good you may connect the fuel pump directly to the battery to see if it works. It may be a bad wiring.

May 08, 2011 | 2004 Chevrolet Tahoe

1 Answer

Could a faulty fuel pump make your tach start bouncing lower suddenly and run rough than not want to start. Spray some starter fluid and fires up runs fine sometimes.

It sounds like you may have gotten a little water in your gas. Or sometimes if you run an older model car out of gas or real darn close to empty you can get dirt and debris that lies on the bottom of your gas tank sucked into your injectors. I would first try buying a high quality fuel treatment from the auto parts store and adding it to the gas tank during your next fill up. Also check and see if it's time to replace the spark plugs and plug wires.

Mar 28, 2011 | 1995 Honda Accord

2 Answers

Engine cranks well, half a tank of gas but won't start! Just cranks seems like gas not entering fuel system.

you may be correct, the first thing is to try starting fluid, spray in throttlebody and see if truck starts for a few seconds, if it does then its a fuel problem, mostly a bad fuelpump, start by doing this to see if it a fuel problem,then you can check all the fuses and check for power at pump,alot of times a bad pump will start by banging on bottom of tank while cranking engine if it starts then a bad pump for sure.

Mar 22, 2010 | 1999 Dodge Durango

1 Answer

Engine quites

Next time the mower quits, immediately unscrew the gas cap and try to restart it. If it runs straight away without a cap, you've found the problem - a clogged gas cap vent.

Clean the vent and you'll be able to run with the gas cap in place.

Good luck !


Jun 17, 2009 | Garden

2 Answers

97 gtp turns over wont start..fuel pump runs enermidintly

yep i seen it in happen .i was at a gas station a guy drove car to the gas station on empty.he fill his tank up .could not get it to crank .some cars you have to restart fuel pump when run out of gas. like use a scanner. but chervrolet you run low over heat damage the has to stay submerge gas to keep it cool. check fuel pump should be 41 - 47 psi.

May 05, 2009 | 1997 Pontiac Grand Prix

Not finding what you are looking for?
Garden Logo

Related Topics:

273 people viewed this question

Ask a Question

Usually answered in minutes!

Top John Deere Garden Experts

Phil Walker
Phil Walker

Level 3 Expert

608 Answers

Tim Whalen

Level 3 Expert

3074 Answers

Matt Olenzek
Matt Olenzek

Level 2 Expert

297 Answers

Are you a John Deere Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides