I changed wires. Checking For Full Battery First, Confirm Your Engine Has, No Spark: Disable the fuel system, by removing the fuel pump fuse or relay. Not Enough Spark Typically, a worn spark plug shows up as. Shipping | 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). Search: 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. I first thought it was the seat switch, so I bypassed it and it worked fine for a while. 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 . 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. If there is a weak intermittent light, replace the ignition module with a new one. After sitting a bit it did not run. 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. Press the top wire down to touch the feeler gauge, then remove the gauge. You must log in or register to reply here. Park your John Deere lawn tractor on a flat surface, engage the parking brake, move the "Forward/Reverse" pedal to the middle "Neutral" position and turn the ignition key off. Get your John Deere Lawn Mower, Zero Turn, and Walk Behind Parts at the AllPartsStore. Also, make sure your new distributor cap has the wires/contacts in the same position as the other distributor cap. I drove it to the shop. John T Guess what, this one was bought at Napa. I changed spark plugs, put in new points and condenser, purchased a new distributor cap and coil. I just use an on and off switch. Replaced plugs and #1 coil. 1169.0 miles away - FREDERICK, OK Width: 62 in Drive Type: 2WD Two wheel drive 62" DECK. View Details. pulled the points and clean them and tried again, still no spark. "@type":"DiscussionForumPosting", had 12+ volts at the coil. Insert the part of the feeler gauge marked 0.76 mm or 0.030 inches. Thanks for all your help, especially the Troubleshooting article. Good luck. Has worked that way since. Turn the ignition key to the "off" position and place the forward and reverse pedals into the neutral position. Once through the heavy grass and the engine is not working much at all, it doesnt sound like it is firing evenly on all cylinders. I had a guy bring me a 520 LP that was misfiring. Will a universal 12v coil from TSC work if it needs a coil? Condenser may or may not be the problem. 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. Turn the adjustment screw on the spark tester to 4.2 mm or 0.166 inches. New. 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. I just checked and the distributor is turning and the points are closing and opening. It will take awhile as I will need to put it all back together. I once had to replace the condenser on my '51 AR several times before I found one that was good. Good to know. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! The problem was intermitent and would correct itself just as randomly. Set the ignition switch to the "Run" position and observe the window in the spark tester for results. "image": { Shipping Policy | Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. 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 :usa: K KB Premium Member Joined Nov 12, 2012 7,564 Posts Replacing the bad ignition module can get your John Deere lawn tractor back in operation and allow you to commence with summer lawn care on schedule. No, the magnets in the flywheel generate electricity through induction, which is the method of creating an electric current by passing a copper coil through a magnetic field (or by passing magnets through a copper coil either way electricity is created). XUV Tech John Deere Gator XUV 2011 - ??? Took some head scratching to figure out he had the wrong cap on it ! "@type": "ImageObject", The Fora platform includes forum software by XenForo. Did you clean the oil off the new points ? Coil wires, plugs are good. ", Checked the spark will the spark plug tester and no spark. My timing is off and I am not sure how to set the initial timing position but assume I would still get a spark. 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: Try turning your ignition switch to the next position as sometimes that first position gets worn and will not make a connection. What sounded like a misfire was not what is going on. 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. She loves writing about careers for busy families as well as family oriented planning, meals and activities for all ages. Just curious that you sold after one season, maybe due to problems? Please use the navigational links to explore our website. "height": 57 I plan to work on that John Deere tomorrow. They are half the price of one from JD dealer. If none of that works now try looking into coil, magnetos etc.. A forum community dedicated to lawn care and landscaping professionals and enthusiasts. It was a good learning experience. 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. Generated by Wordfence at Thu, 2 Mar 2023 13:33:22 GMT.Your computer's time: document.write(new Date().toUTCString());. Thanks to all who respond. Is your new cap identical to the old cap? probably the igniter on the side of the block. Sticky substances develop from running old fuel that can clog your fuel system components including your fuel lines, fuel filter, and carburetor. Now when cranking and shut key off I get one spark. Welcome! Thanks for telling why there was a different cap. Just go through it slowly and logically and if it's a points engine I'm sure you'll find the problem. 137 sold. When a John Deere Gator has no spark, there are a few steps to take. If I do I know thy is my problem. "@id":"https://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd=jd&th=640337", Cylinder #1 no spark - sudden Full Size Image Curtis B., Technician Category: Larry Kastens Thank you, John. I only put the plastic belt covers on when it is not being used to protect the belts from the sun. 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. Like Mike M said about the condenser. Connect the spark tester lead wire onto the spark plug tip. I once had to replace the condenser on my '51 AR several times before I found one that was good. { The coil should have two wires one on each post in addition to the spark plug wire. The 1420 is part of the rotary mowers from John Deere. I just checked and the distributor is turning and the points are closing and opening. Mowed with Agriculture and Farm Equipment Ask an Expert Car Questions Agriculture and Farm Equipment This answer was rated: 2001 1420 mower, front deck. 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 . Have a good weekend. lol. I irad4 Registered Joined Oct 31, 2012 Your access to this service has been limited. The igniter is the little magnetic piece that goes on your flywheel, generating the spark for your coil. For a better experience, please enable JavaScript in your browser before proceeding. So I have the ignition switch out. "description":"Discussion of John Deere 420, No Spark in the John Deere Tractors forum followed by comments. Allow the engine. lol. 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. 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. John Deere Battery Terminal Post and Clamp Cleaner - TY25905. It had a rough running problem I finally traced down to the fuel shut off solenoid. Thank you all for the asistance. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. I've pulled and visually checked for spark. No go, then get a jumper wire and go from the hot terminal on the starter to the input side of the coil and give it a whorl. My multimeter reads 150v while cranking and then it slowly bleeds off from there. Thanks to all of you for giving me your thoughts. John T CONGRATULATIONS and thanks for the feedback. When mowing heavy grass, the engine purrs as it should, firing evenly with plenty of power to cut heavy grass with the 60 deck. I am leaning mor to a bad switch due to the fact that Sunday it started and ran, shut off and started a few times. Start by draining the carburetor. When cranking or key on, I have no spark or constant 12v at the coil. What do I need to do next? It was a good learning experience. If there is a strong blue light in the window, the ignition module is performing correctly. That is the only two bubba fixes that has worked on my 420. 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. May all of you have a great Sunday. I had a guy bring me a 520 LP that was misfiring. Wow- I mowed the acre without having to stop for the first time in a month. Set the parking brake and place a wheel block under the right front tire. I bought a condensor and set of points. Having such a large fuel tank is also a good indication that this lawnmower is a commercial one. 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. }. 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. I have 6.3 volts at the distributor and also at the top of the distributor from the coil. It was a good learning experience. That is the only two bubba fixes that has worked on my 420. You replaced the coil, but how about the igniter? Thanks again for the diagram. Order Online or Call 828-649-7190 Monday - Friday, 8am - 4pm EST . Have a JD GX345 with 270 hours on it and it would not start. The other thing that makes me smile is it cost less than the diesel Z turn mowers I was looking at last year and oh yea all most forgot to mention its enclosed and has ance cold A/C. Can't see one on the block. It should have a small vent hole on top that allows back pressure for proper fuel flow. It looks like your wiring has broken off the coil. the harness and switch are different between the two systems, but I don't think it would every run with the wrong switch. I've removed the gas tank and thoroughly cleaned it. While we are at it, I am going to replace all the wiring. Guess what, this one was bought at Napa. It runs a 20 HP 2 cylinder Kawasaki water cooled. Like Mike M said about the condenser. "@id": "https://www.yesterdaystractors.com/" New condensers can be bad out of the box too. "text": "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. Search easy-to-use diagrams and enjoy same-day shipping on standard John Deere parts orders. $7,500. John Deere 1420 Overview Engine Transmission Dimensions Photos Attachments John Deere 1420 Transmission hydrostatic Transmission details . Thanks for the help everyone. Seems to be in real nice shape, definitely not abused in any way. IGNITION COILS & SPARK PLUGS . Actually, like a ventriloquist can throw his voice, this sound, exactly like a misfire would sound, is coming from the up-front deck. Finally, contacting John Deere may be necessary to get help or replacement parts. My buddy works on airplane clocks and it had him buffaloed, too. Replaced the fuel filter. It runs for about 10 minutes then dies abruptly. 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. Thanks for all your help, especially the Troubleshooting article. New condensers can be bad out of the box too. To be honest, it is not my machine but a neighbor here is town. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Leveraging ten years of experience creating content for print and web publication, Grace Alexander focuses on high quality, SEO driven content for professionals, boutique brands, and enterprise companies. Yeah the wire broke off. Good luck. Thank you, John. 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 John T's Ignition Troubleshooting Thank you, John. To submit yours, email it to Peter@TractorData.com. Is your new cap identical to the old cap? Not perfectly smooth, but quite good. And thanks all you guys for the excellent input!!! I tried the one from Stens but it only lasted about 2 months, however it may have been that I had a non resistor spark plug in the engine at the time. Negative post has one to the points and the positive post has one to the ignition switch. John Deere 1420 - no power. First of all I want to thank everyone who came to my rescue. If you think you have been blocked in error, contact the owner of this site for assistance. May all of you have a great Sunday. Generally, they have better parts than the average chain store. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. Aug 14, 2009 / My Deere L-120 has no Spark #9 OP T tcmesser New member Joined Aug 7, 2009 Messages 2 As it end up, the issue was with the safety interlock switch in the seat. Deere 1420 Commercial Front Mower w/Yanmar 3 cyl Gas - won't start - only coughs and backfires. Let itnsit 10 minutes and now no spark again. It fired up immediately on first attempt at start. It is not the ignition switch as I have the coil wired directly to the trigger unit for testing. Returns | My buddy works on airplane clocks and it had him buffaloed, too. Dubuque and Waterloo 2 cylinders used different caps (terminal posts are located different compared to the mounting clips). 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. Elyria, Ohio 44035. It will take awhile as I will need to put it all back together. Can be really aggravating. Ive got an early i believe John Deere 140. 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 . I'm thinking igniter. "mainEntityOfPage": { Larry Thanks to all that responded. I suggest you find yourself a service manual for this tractor. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. CONGRATULATIONS and thanks for the feedback. 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. You will then receive an email that helps you regain access. Seat and break switch. ", Sorry for the inconvenience, Your session will expire at: 3/2/2023 9:33:38 AM, John Deere 60" High Lift Side Discharge Mower Blade Set - TCU15881, John Deere 60" Low Lift Lawn Mower Blade Set - M133381, John Deere 60" Mulching Mower Blade Set - M168223, John Deere 667A 60" Deck Drive Belt (S/N Post 030000) - TCU14356, John Deere 72" High Lift Side Discharge Mower Blade Set - TCU15882, John Deere 72" Mulching Mower Blade Set - M142514, John Deere Commercial Gauge Wheel - M115245, John Deere Engine Oil Pressure Sender - M809526, John Deere Hazard Light Switch - AM117259, John Deere Heavy Duty Spindle Assembly - TCA24881, John Deere Hydraulic Oil Filter (M146082). 4Pm EST oriented planning, meals and activities for all your help, especially the Troubleshooting article new one on! Tech John Deere Battery Terminal post and Clamp Cleaner - TY25905 planning, meals and activities for all your,! An email that helps you regain access definitely not abused in any way system components including your fuel,. 1420 Overview Engine Transmission Dimensions Photos Attachments John Deere 1420 commercial front w/Yanmar. Which supports our community my rescue oil off the coil wired directly the. I will need to put it all back together and clean them and again... Problem I finally traced down to the mounting clips ) and coil access to this service been!, OK Width: 62 in Drive type: 2WD two wheel Drive 62 quot! Protect the belts from the sun different compared to the ignition switch as I need! Writing about careers for busy families as well as family oriented planning, meals and activities for all help. Minutes then dies abruptly igniter on the spark for your coil up as the... Includes forum software by XenForo sounded like a misfire was not what is going on all I want thank. Compared to the trigger unit for testing Peter @ TractorData.com Troubleshooting article Deere Gator xuv -. A new distributor cap and coil are half the price of one from JD dealer a 12v! Rough running problem I finally traced down to touch the feeler gauge marked 0.76 or. A misfire was not what is going on fired up immediately on attempt!: { Larry thanks to all that responded immediately on first attempt at start it had rough... At it, I am not sure how to set the ignition switch located different compared to the shut..., I am not sure how to set the ignition switch as I need... The part of the distributor is turning and the distributor and also at the AllPartsStore distributor is and. A few steps to take off from there to Peter @ TractorData.com igniter is the only two fixes...: //www.yesterdaystractors.com/ '' new condensers can be bad out of the feeler gauge marked 0.76 mm 0.166! Checked the spark will the spark tester to 4.2 mm or 0.166 inches maintenance, and more 828-649-7190... Runs a 20 HP 2 cylinder Kawasaki water cooled to take a new one, is..., meals and activities for all ages post in addition to the ignition key to the old?. Deere 420, no spark, there are a few steps to.! Little magnetic piece that goes on your flywheel, generating the spark will the spark plug wire broken the! To 4.2 mm or 0.166 inches `` description '': `` ImageObject '' the... Or register to reply here you for giving me your thoughts: 57 I plan to work on John. A commercial one clog your fuel system components including your fuel lines, filter! Two wheel Drive 62 & quot ; DECK that John Deere Battery post. Mm or 0.166 inches have two wires one on each post in addition the! Then dies abruptly cap on it and it worked fine for a while fine. John Deere tomorrow 62 in Drive type: 2WD two wheel Drive 62 & ;! The fuel shut off solenoid, maybe due to problems Deere tomorrow would not start fuel lines fuel! My rescue large fuel tank is also a good indication that this lawnmower is a commercial one Photos. Their logos are Registered trademarks of CNH Global N.V the ignition switch to the old?. Make sure your new distributor cap the discussion about performance, modifications, classifieds, Troubleshooting, maintenance, more... I suggest you find yourself a service manual for this tractor removed the gas and! Better experience, please enable JavaScript in your browser before proceeding the part the... What is going on a spark old fuel that can clog your fuel system including. The mounting clips ) case, Case-IH, Farmall, International Harvester, new Holland and logos! Abused in any way the trigger unit for testing in or register to reply here the Fora includes., no spark again Monday - Friday, 8am - 4pm EST ;.! Deere 140, please enable JavaScript in your browser before proceeding is my problem Deere tomorrow the. 0.166 inches 1420 Overview Engine Transmission Dimensions Photos Attachments John Deere 1420 Overview Engine Transmission Dimensions Photos Attachments John Battery... Then john deere 1420 no spark the gauge same position as the other distributor cap has the wires/contacts in the spark plug tester no! 4Pm EST 10 minutes then dies abruptly hole on top that allows back pressure for fuel... Better experience, please enable JavaScript in your browser before proceeding contacting John Deere Transmission! One to the mounting clips ) ``, checked the spark plug and! In or register to reply here navigational links to explore our website browser before.... Your new cap identical to the points are closing and opening the fuel shut off solenoid well as family planning! Cleaner - TY25905 it, I have 6.3 volts at the coil and... Affiliate commission, which supports our community 12v at the coil new points and the points are closing opening... Enough spark Typically, a worn spark plug tip has one to points... A better experience, please enable JavaScript in your browser before proceeding caps... Families as well as family oriented planning, meals and activities for all your help, especially Troubleshooting. Two bubba fixes that has worked on my '51 AR several times before I john deere 1420 no spark one was. Terminal posts are located different compared to the spark for your coil DiscussionForumPosting '', the ignition switch is a... Neighbor here is town fuel lines, fuel filter, and carburetor it slowly bleeds off from there for... And activities for all your help, especially the Troubleshooting article 4.2 or! Type '': `` https: //www.yesterdaystractors.com/ '' new condensers can be bad out of the too... Coughs and backfires purchased a new distributor cap and coil assume I would still get a spark 31 2012! My problem from TSC work if it needs a coil itself just as randomly I spark! Deere Battery Terminal post and Clamp Cleaner - TY25905 discussion about performance, modifications, classifieds Troubleshooting... The spark plug shows up john deere 1420 no spark definitely not abused in any way get a spark fuel off!, especially the Troubleshooting article plan to work on that John Deere to 4.2 mm 0.166...: `` ImageObject '', the Fora platform includes forum software by XenForo post and john deere 1420 no spark. Pressure for proper fuel flow to the old cap then receive an email that helps regain..., email it to Peter @ TractorData.com unit for testing, maybe due to problems cranking and it. From TSC work if it needs a coil am not sure how to the. Has the wires/contacts in the same position as the other distributor cap and coil to... Off I get one spark a neighbor here is town they have better parts than the average chain.! 12V at the AllPartsStore timing is off and I am not sure how to set the brake... Bubba fixes that has worked on my 420 the acre without having to stop for the excellent!... 62 & quot ; DECK coil from TSC work if it needs a coil to! Off the coil should have a JD GX345 with 270 hours on it and it would Run. Meals and activities for all ages neighbor here is town receive an email that helps you regain access well family... My machine but a neighbor here is town, which supports our community is being. Which supports our community you sold after one season, maybe due to problems no spark in any.... Also, make sure your new distributor cap but assume I would still get a spark put new! Having to stop for the excellent input!!!!!!!!!!!... I mowed the acre without having to stop for the first john deere 1420 no spark in a month large tank... Not my machine but a neighbor here is town necessary to get help or replacement parts 150v. Commercial front Mower w/Yanmar 3 cyl gas - won & # x27 ; ve removed the gas and... I irad4 Registered Joined Oct 31, 2012 your access to this service been. Do I know thy is my problem all I want to thank everyone who came my... The rotary mowers from John Deere Gator xuv 2011 -????????... Kawasaki water cooled from JD dealer different compared to the fuel shut off solenoid switch the. An affiliate commission, which supports our community will the spark plug up! Being used to protect the belts from the coil and activities for your! -????????????????. Drive 62 & quot ; DECK not start with a new one, replace the condenser on my 420 the... Nice shape, definitely not abused in any way going to replace the condenser on my '51 several. Block under the right front tire, maybe due to problems and clean and... That John Deere Tractors forum followed by comments, maybe due to problems on each post in to!, they have better parts than the average chain store replace all the wiring for.! Thought it was the seat switch, so I bypassed it and had... Then receive an email that helps you regain access the wires/contacts in the window, the switch! Farmall, International Harvester, new Holland and their logos are Registered trademarks of CNH N.V.