John Deere 420, No Spark - Yesterday's Tractors The last time I used my 1956 John Deere 420 it was running all right then all of a sudden it stated to run on one cylinder. 23X10.5-12 4pr Turf Tires Deluxe Suspension .See More Details. If there is no spark, or the spark is weak and erratic, the ignition module is not functioning correctly and needs to be replaced. Replaced the fuel filter. 2001 1420 mower, front deck. Then that failed to keep engine from running rough. I had already installed new plugs, new battery, fuel filter, and air filter and paid for a service call to the tune of $500! May all of you have a great Sunday. When you turn the key to to ON position, should the coil have 12v constant on the solid state ignition? Your access to this service has been limited. First of all I want to thank everyone who came to my rescue. It was a good learning experience. For a better experience, please enable JavaScript in your browser before proceeding. After spraying it with the cleaning product, you may reassemble the components and let the spray do the job while your lawnmower is working. 2) If NO spark from wire or plugs, to check for cap or rotor or plug or plug wire problems, remove the coil wire from the distributor (leave coil end attached to coil) and place it to within 1/8 inch away from tractor iron/frame/steel,,,,, ,,turn ignition on and crank her over. The ignition module converts the 12 volts from the battery to a high voltage charge and directs it to the correct spark plugs in the correct order in the case of a John Deere V-twin engine lawn tractor with two spark plugs. How to Change the Spark Plug on a McCulloch 2.1 Eager Beaver Chain Saw, How to Replace Non Polarized Wall Outlets, How to Replace the Safety Switch on a Kenmore 80 Dryer, How to Replace a Poulan WildThing Chainsaw Spark Plug, John Deere: Tractors 100 Series Operator's Manual, Car Parts.com: A Short Course on Ignition Systems, University of California Agriculture & Natural Resources: Recommended Cutting Height, University of California Cooperative Extension: Lawn Fertilization and Watering, How to clean a showerhead, according to an expert, How to Fix a Weed Eater Lawn Mower That Is Stalling Out, How to Troubleshoot a Toro 22-Inch Walk-Behind. "url": "https://www.yesterdaystractors.com/graphics/smllogo.png", I copied this information and will need to study it, then next week when I have a buddy come over, we will work through this. It will take awhile as I will need to put it all back together. ALLJD. "name": "Larry Kastens" Welcome to WFM. But, after mowing some very heavy grass today, I have some questions: Not sure what I am detecting, but when mowing with it today I thought I might be sensing a slight misfire when mowing light grass (little to no load on engine). Just now tried to start. At the front of the engine, locate the spark plug wire that can be seen coming out of the shroud, and remove it from the spark plug. Thanks to all who respond. John Deere 1445 Diesel 4 X 4 Front Rotary Mower Serial number TC14455D040475 Location Oak Hills California 92344 Hours 2,201 1445 Engine Engine Model Number Yanmar 3TNE78 Engine Type 4-Cycle, 3-Cylinder, In-Line Diesel Cooling Liquid Cooled Gross Output 23 kW (31 hp) Net Output 19.9 kW (26.7 hp) Injection Type Direct Air Cleaner Dry, Replaceable Access from your area has been temporarily limited for security reasons. "@id": "https://www.yesterdaystractors.com/" 84-420 with 60" deck, 85 316, 5-212's, STX38, 3 REAR ENGINE DEERES, 140 H1 basket case, 50 cart, 43 front blade, 43 center blade, 2-31 tillers Brinly disc and 3 - 10" sleeve hitch plows, 2 sleeve hitches, 3 set's rear weights, front weights, 4' rear sleeve hitch blade, 5 - 37A blowers and more Garden Mark, MTD and Yardman mowers/tractors :usa: John Deere Mower Problem 1: Mower Won't Start When your John Deere mower won't start, look at items that can cause an air or fuel restriction. I first thought it was the seat switch, so I bypassed it and it worked fine for a while. Check and make sure that during your changing the points and condenser, something has not made a path to ground starting at the bulkhead insulator in the side of the distributor to the points strap(s) or wire to the condenser. Larry Kastens Thank you, John. When cranking or key on, I have no spark or constant 12v at the coil. "publisher": { My experience has been that its usually the points. John Deere and its logos are the registered trademarks of the John Deere Corporation. And thanks all you guys for the excellent input!!! Has worked that way since. It is not the ignition switch as I have the coil wired directly to the trigger unit for testing. At high idle, no load it runs perfectly. If the spark plug is good, continue on to check the ignition module. Commonly Used Parts Outside of the schedule service intervals, you may need a part for a quick repair. } Thanks for all your help, especially the Troubleshooting article. Its possible you may just have a faulty ignition switch (or a blown fuse if it has one), thats why I asked you the above before proceeding to more detailed troubleshootign below, and if theres no voltage to the coils input with the switch on, try to hot wire the coil and see if you have spark then. If the porcelain is cracked on the spark plug, replace it with a new one. Order Online or Call 828-649-7190 Monday - Friday, 8am - 4pm EST . Take a used one dollar bill and fold it a couple of times, get the points closed on it and then run the dollar back and forth to do a final cleaning on the points. May all of you have a great Sunday. John Deere Mower Spindles. Play with it a little. Cylinder #1 no spark - sudden onset. If it is bad, replace the spark plug and test the tractor. Maybe it is, but it sounds different than when working it under heavy load. It will take awhile as I will need to put it all back together. Did you clean the oil off the new points ? Usually the break is the issue. . Seems to be in real nice shape, definitely not abused in any way. Can be really aggravating. John Deere Tires/Wheels. Thanks to all of you for giving me your thoughts. 737 hours from new. So I put the cover and everything else back on. Also, check to see that the points are closing. Phone: (440) 742-7026. My experience has been that it?s usually the points. The wire was broke off flush with the top. (1) $6.71. Earlier, I tried starting after the coil install. I plan to work on that John Deere tomorrow. "width": 200, Connect the spark plug boot to a spark tester. i did use a business card to set the gap can you think of anything else that it could be? "author": { Are you sure the distributor is turning? 5PCS Air Filter Lawn Mower Filters For . It may not display this or other websites correctly. Negative post has one to the points and the positive post has one to the ignition switch. Good luck. Larry, most times Christmas does not come early, but. pulled the points and clean them and tried again, still no spark. The coil has to fire HV out its top tower (each time points break open) but then it has to be distributed via the dist cap and rotor assembly which can be at fault For a complete troubleshooting procedure to determine the cause of no fire out the coils top HV tower (where coil wire attaches) copy and work through my procedure linked below: http://www.ytmag.com/cgi-bin/viewit.cgi?bd=farmall&th=5745 John T Larry, on a 6 volt tractor and 6 volt coil with Ignition ON there should be 6 volts on the coils INPUT (NOT to dist terminal) With good working points CLOSED there should be near zero volts on the coils small OUTPUT (to dist) terminal With good working points OPEN there should be 6 volts on the coils small OUTPUT (to dist) terminal If you crank the engine over a 6 volt test lamp on the coils OUTPUT to dist terminal should flash ON when points are open and flash OFF when they are closed. I crank the starter then let off and it will start and run. Issues with bad battery connections usually show up as failure of the starter motor to spin. Get Shipping Quotes. Dealer Info Quality Implement Co. FREDERICK, OK 1169.0 miles away 580-335-5541. I would make sure the belt is good and tight. Start by draining the carburetor. CONGRATULATIONS and thanks for the feedback. I just checked and the distributor is turning and the points are closing and opening. It runs a 20 HP 2 cylinder Kawasaki water cooled. That said, I have a couple of hills that probably would have been best served by an awd mower. Thanks to all of you for giving me your thoughts. Larry, most times Christmas does not come early, but. "height": 57 TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. My multimeter reads 150v while cranking and then it slowly bleeds off from there. JavaScript is disabled. Come join the discussion about classic restorations, references, performance, modifications, classifieds, troubleshooting, maintenance, and more! Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Did you notice anything problematic about the 1420? When you purchase through links on our site, we may earn an affiliate commission, which supports our community. "@type": "WebPage", That is the only two bubba fixes that has worked on my 420. Before doing any testing, always start with a fully charged battery. Thanks for all your help, especially the Troubleshooting article. XUV Tech John Deere Gator XUV 2011 - ??? probably the igniter on the side of the block. Thanks ftorleans1 Registered Joined Jul 11, 2009 432 Posts Outdoor Gasoline and Electric Powered Equipment and Small Engines - John Deere 425 no spark - I have an older John Deere lawn tractor Model 425 with hydrostat and a 54 deck. First of all I want to thank everyone who came to my rescue. Cylinder #1 no spark - sudden Full Size Image Curtis B., Technician Category: I have an inline spark checker with a little bulb in it, and every time I crankbthe engine over, and then shut the key off after cranking, it will give 1 good spark. When you turn the ignition key, the battery sends voltage to the spark plug to ignite the fuel and air mixture in the carburetor to start the engine. Dubuque and Waterloo 2 cylinders used different caps (terminal posts are located different compared to the mounting clips). New condensers can be bad out of the box too. Clean the points, even if they are new. As near as I can tell, it was a faulty condenser, but the last go around I changed the rotor and I noticed that the gap should have been .025 instead of .020 but the last two items were working before the engine started to miss, so my best guess is that it was faulty condenser. then I checked the voltage from the coil to the points. What wire is the kill wire? Wow- I mowed the acre without having to stop for the first time in a month. I have a 425 AWS lawn tractor and it won't start. The Heavy Equipment Mechanic I'm going to connect you with knows all the tricks and shortcuts. Also, check to see that the points are closing. I just use an on and off switch. lol. Let itnsit 10 minutes and now no spark again. All Rights Reserved. Now when cranking and shut key off I get one spark. Have a JD GX345 with 270 hours on it and it would not start. If the problem persists, continue on to test the ignition module. You can also read the documentation to learn about Wordfence's blocking tools, or visit wordfence.com to learn more about Wordfence. Larry, Try turning your ignition switch to the next position as sometimes that first position gets worn and will not make a connection. To be honest, it is not my machine but a neighbor here is town. May all of you have a great Sunday. The owner of this site is using Wordfence to manage access to their site. Just curious that you sold after one season, maybe due to problems? Larry Kastens Larry, Try turning your ignition switch to the next position as sometimes that first position gets worn and will not make a connection. Use of this Web site constitutes acceptance of our. A John Deere lawn tractor that sputters or refuses to run can put a crimp in lawn and garden maintenance plans over the summer. "@type": "InteractionCounter", The shields resonate like a drum skin. Carburetor Kit W/Air Filter Carb 550EX 725EXI 625EX 675EX 140cc Spark Plug. 1. ", New. Larry Thanks to all that responded. I knew a mag rebuilder who bought condensors in bulk and told me nearly 50% of them were either bad or out of spec grrrrrrrrrrrr. Seems to be in real nice shape, definitely not abused in any way. I changed spark plugs, put in new points and condenser, purchased a new distributor cap and coil. So this ignition setup is known to cause problems? The Fora platform includes forum software by XenForo. They are solid machines and should last forever with proper maintenance. Privacy Policy | I let it sit for an hour or so with the hood up to let it cool and then it starts and the whole process starts again. It has good compression but no spark is reaching the spark plugs. Thanks for the help everyone. Replace that and 9.9999 times out of 10 it will start right up. My 440 crawler behaves that way and I went through replacing all the parts you did before someone on the jdcrawler site made this suggestion . The harmonic is likely beginning with the belts, then transferring to the covers which transmit and amplify the sound like an audio speaker. Current issue is it will not start with no spark. No spark nothing. Thanks for all your help, especially the Troubleshooting article. Store Locator | "dateModified": "2020-02-29", Turn the ignition key to the "off" position and place the forward and reverse pedals into the neutral position. To enable Connected Support, your machine must be factory-equipped or field-installed with the following: JDLink 4G MTG or other MTG with active service. All trademarks appearing on this page are the property of their respective owners. Press the top wire down to touch the feeler gauge, then remove the gauge. I've pulled and visually checked for spark. XUV Parts for Sale/Wanted; John Deere Gator XUV 2007 - 2010 All Rights Reserved. http://www.lawnsite.com/showpost.php?p=3617904&postcount=5. I only owned it for 1 season, but I did notice the belt would slap around more than what I would consider normal. What sounded like a misfire was not what is going on. RSX 850i, 860i & 860M John Deere Gator General Discussion. Open the hood and remove the black rubber spark plug boot from the spark plug on the engine's side near the bottom. (800) 853-2651Shop Now TRACTOR PARTS Allis Chalmers Case & David Brown Set the parking brake and place a wheel block under the right front tire. "@id":"https://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd=jd&th=640337", Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. Thanks again for the diagram. Checked the spark will the spark plug tester and no spark. Thanks to all who respond. Search: Does the igniter do the same job as having magnets embedded in the flywheel? If there is a weak intermittent light, replace the ignition module with a new one. Let it sit. I have an 07 1545 with the 72 flex deck and I have 6 belts on the deck. A forum community dedicated to Vintage John Deere Tractors owners and enthusiasts. FOR JOHN DEERE 322 330 332 1445 1420 F912 F915 F925 F932 DRIVESHAFT ISOLATOR. Also, check to see that the points are closing. A John Deere lawn tractor that sputters or refuses to run can put a crimp in lawn and garden maintenance plans over the summer. The part costs $72 but we have only had to replace two in 19 years. CHECK THIS FIRST How to make sure your ignition module is BAD on ANY. That tells me the trigger unit may be bad because the coil is still functioning and the stator is providing the power. As near as I can tell, it was a faulty condenser, but the last go around I changed the rotor and I noticed that the gap should have been .025 instead of .020 but the last two items were working before the engine started to miss, so my best guess is that it was faulty condenser. The problem was intermitent and would correct itself just as randomly. One was the wire that goes to the grounding switch, one was the switch itself was bad and grounding all the time, one was missing the crankshaft key for the flywheel and one was the capacitor on the points. Generated by Wordfence at Thu, 2 Mar 2023 13:33:22 GMT.Your computer's time: document.write(new Date().toUTCString());. Took some head scratching to figure out he had the wrong cap on it ! Ive got an early i believe John Deere 140. Thanks to all that responded. I put pressure on wires with zip ties and it ran fine. Regular Maintenance should be performed on the 1420 every 50 hours and should include Spark Plug, Air Filter, Oil Filter, and to sharpen or replace mower blades. I will be 80 next month but one never gets too old to learn. My buddy works on airplane clocks and it had him buffaloed, too. Finally, contacting John Deere may be necessary to get help or replacement parts. Like Mike M said about the condenser. Also, make sure your new distributor cap has the wires/contacts in the same position as the other distributor cap. New condensers can be bad out of the box too. Like Mike M said about the condenser. I read somewhere that non resistor spark . First thing is there are safety switches that will not allow the spark. Also, make sure your new distributor cap has the wires/contacts in the same position as the other distributor cap. So, not sure if the misfire maybe is a slight vibration, perhaps from slightly imbalanced blades on the deck, or perhaps it is a misfire due to spark plugs being in bad condition. After sitting a bit it did not run. }, I have a Scotts L2048 equal to a JD D140. 2008 JOHN DEERE 1420 Riding Lawn Mowers Outdoor Power Price: USD $5,800 Get Financing* Machine Location: Owatonna, Minnesota 55060 Cutting Width: 60 in Hours: 1,126 Fuel Type: Gas Serial Number: TC1420G080012 Condition: Used Stock Number: 625642 Compare Kibble Equipment Phone: (507) 353-7119 View Details Email Seller Video Chat I'm just highly confused. (HTTP response code 503). If you plan on using these older machines for any real work you will need one. My John Deere 1993 425 AWS seemed to lose spark to one cylinder and run rough and under powered. Thanks, I ended up buying both kinds of caps. 737 hours from new. JavaScript is disabled. I changed spark plugs, put in new points and condenser, purchased a new distributor cap and coil. Thanks to all that responded. These are the parts on your John Deere 1420 Front Mower & Parts List that need to be regularly serviced. New condensers can be bad out of the box too. Thank you, John. First, test the spark plug and make sure the connection isn't faulty. Thanks. The pulsing means the points are working. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. Deere 1420 Commercial Front Mower w/Yanmar 3 cyl Gas - won't start - only coughs and backfires. Oregon 83-000 Oil Filter Cross over Napa 21365 John Deere M806418 Replaces AM101378 Replace Honda 15400-PFB-004, PFB-014, PJ7-015 & PM3-004) ;P#O455K5/U 7RK-B217787 Filter 2.5" X 2.5" Cross over to Napa 21365 John Deere M806418 Replaces AM101378 This will John Deere Equipment 322, 330, 332, 355D, 430, 455, GX355, X495, X595, X595SE, X740, X744, X748, X749, X750, Thanks to all of you for giving me your thoughts. They are half the price of one from JD dealer. What you need to get connected. It's a 1420 front mount mower with 3 cylinder gas engine. Thank you all for the asistance. The coil has to fire HV out its top tower (each time points break open) but then it has to be distributed via the dist cap and rotor assembly which can be at fault. Its been my experience the ones bought at NAPA had a far greater chance of being okay versus those sold at Tractor Supply or Rural King etc. The fuel pump works and both 15 amp fuses are good. Ok I was going to bypass the key switch to see if I've got spark. Having such a large fuel tank is also a good indication that this lawnmower is a commercial one. Actually, like a ventriloquist can throw his voice, this sound, exactly like a misfire would sound, is coming from the up-front deck. I just replaced the ignition module for other issues. John T Guess what, this one was bought at Napa. The 1420 Front Mower was produced with standard features including the three cylinder Yanmar gasoline engine, hydrostatic transmission, and 3.8 qt engine oil capacity. Also, check to see that the points are closing. Started checking it with the multi-meter. I'm thinking you'll want to test the leads at the coil end with the ignition on, '03 Chevy Silverado 2500HD 4x4 6.0L Utility Truck. 11 years ago. I almost want to say it is the kill switch that could possibly be bad. If the hole is blocked, the engine will stall. 016785m is the tractor serial number. Polen Implement. Use a multimeter to check the spark plug first, as many of the symptoms caused by a bad ignition module can also be caused by a bad spark plug. Thats what I was hearing. Condenser may or may not be the problem. Clean the points, even if they are new. 1169.0 miles away - FREDERICK, OK Width: 62 in Drive Type: 2WD Two wheel drive 62" DECK. Returns | No Spark? With good working points OPEN there should be 6 volts on the coils small OUTPUT (to dist) terminal If you crank the engine over a 6 volt test lamp on the coils OUTPUT to dist terminal should flash ON when points are open and flash OFF when they are closed. In many cases, a failed or failing ignition switch is all that preventing your tractor from running properly. Has worked that way since. Like Mike M said about the condenser. If the porcelain is cracked on the spark plug, replace it with a new one. "@context":"https://schema.org", Found the wires to the trigger unit had the coating chewed off of then. Okay, so time for an update. The wire was New to John Deere mowers just today when I took on ownership of a John Deere 1420 front deck mower with Yanmar 3 cylinder gas engine. You will then receive an email that helps you regain access. I drove it to the shop. For more information, contact a salesman at our Fredrick location at 580_335_5541. To submit yours, email it to Peter@TractorData.com. I took out the spark plugs, connected it to the wire and when I turned it over it didn't spark when grounded to the motor. Guess what, this one was bought at Napa. RSX 850i Tech/Performance: RSX 850i Parts for Sale/Wanted; John Deere Gator XUV 2011-20xx. Search easy-to-use diagrams and enjoy same-day shipping on standard John Deere parts orders. As near as I can tell, it was a faulty condenser, but the last go around I changed the rotor and I noticed that the gap should have been .025 instead of .020 but the last two items were working before the engine started to miss, so my best guess is that it was faulty condenser. Thank you, John. . It will take awhile as I will need to put it all back together. On John Deere lawn tractors, the ignition module is the part that is responsible for creating the electricity used by the engine cylinder to ignite fuel and oxygen, which in turn powers the engine piston. Just CNT figure out if I'm supposed to have 12v constant or not. Make sure those are working. Also, make sure your new distributor cap has the wires/contacts in the same position as the other distributor cap. Depending on the model of spark tester, the lead wire may be shaped as a spark plug boot or as an alligator clip to fasten to the top of the spark plug. At the front of the engine, locate the spark plug wire that can be seen coming out of the shroud, and remove it from the spark plug. Thanks, I ended up buying both kinds of caps. Photos No photos of the John Deere 1420 are currently available. Check and make sure that during your changing the points and condenser, something has not made a path to ground starting at the bulkhead insulator in the side of the distributor to the points strap(s) or wire to the condenser. If you crank the engine over a 6 volt test lamp on the coils OUTPUT to dist terminal should flash ON when points are open and flash OFF when they are closed. If that doesn't work, check the battery and then the ignition coil. "logo": { Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!
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