12/31/2019 John Deere Gator Loses Dash Power
Jun 29, 2011 Re: John Deere 2020 losing power Jim, You are right in line with what the dealer i bought it from suggested. His focus was the bypass line going back into the tank (just over the phone). John Deere Gator NO POWER #56167. By madmaxdecals - Sat Mar 17, 2012 2:08 am - Sat Mar 17. It is as if once the ciruit is completed.(everything is hooked up as it should) then that is when I lose power. I have double checked my wiring and everything matches your schematics.I am at a bit of a loss.
Written by Robert Korpella; Updated December 14, 2018
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John Deere and Co. is a manufacturer of farm and home machinery, including lawnmowers and lawn tractors. The color of smoke emitted from a John Deere lawn tractor is a good indicator of what may be happening inside its engine. White or blue-tinged smoke has one set of causes while black smoke has a different set.
Break-in Period
White or blue smoke may be emitted during the initial break-in period of a new John Deere lawn tractor. Breaking in the engine seats piston rings and burns off residual oil that may have coated parts during assembly. On its website, the John Deere and Co. recommends running a new engine hard for at least five hours, although the company states that the break-in period may last as long as 50 hours of engine operation. Running the engine hard means mowing or plowing snow with the lawn tractor at full throttle. The company also warns that the mower may consume oil during the break-in period. Oil consumption can lead to an abnormal amount of smoke from the exhaust as the engine burns it along with gasoline.
Not Enough Air
Engines rely on a mixture of air and fuel for proper operation. Those two combustion sources must be present in the right amounts for trouble-free engine operation. A dirty air filter robs the lawn tractor’s engine of air. As a result, the machine runs poorly and may bellow black smoke, a signal that the air-to-fuel ration is too rich. If the mower’s air filter is made of paper, then it can be replaced. If it is made of foam, it can be cleaned with warm, soapy water, rinsed with fresh water, dried and coated thinly with fresh engine oil before it is put back into place.
Carburetor Adjustments
The choke helps start a cold engine by closing off most of the air just long enough for a rich fuel mixture to crank the engine. As the engine warms, the choke opens, and the engine burns the proper air-and-fuel mixture. If the choke sticks shut, then the fuel mixture ends up being too rich, just as it would be with a clogged air filter. The inside of the carburetor has a series of needle valves and tiny orifices for gasoline to spray into the device. If the carburetor is dirty inside, or if the components have worn to the point of needing replacement, then black smoke is likely to spew from the lawn tractor’s exhaust. If you are unfamiliar with carburetor adjustments, cleaning or replacement, then those are jobs that might best be served by small-engine or John Deere brand specialists.
Oil Burner
After the initial break-in period, the lawn tractor’s engine should no longer issue excessive amounts of white or blue smoke. If it does, then oil may be seeping past the piston rings and into the combustion chamber, where the engine attempts to burn it along with the fuel. Deep internal components such as these also require the services of a qualified service technician. Black smoke from the exhaust accompanied by oil in the carburetor or air filter is an indication of oil backing up from the engine. The lawn tractor’s engine tries to burn the oil, present in large enough quantities that the smoke turns black instead of white. An overfilled oil compartment is one cause of oil backing into the carburetor, as is a lawn tractor that recently tipped on its side. In addition, failed gaskets inside the engine also may be to blame.
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Robert Korpella has been writing professionally since 2000. He is a certified Master Naturalist, regularly monitors stream water quality and is the editor of freshare.net, a site exploring the Ozarks outdoors. Korpella's work has appeared in a variety of publications. He holds a bachelor's degree from the University of Arkansas.
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Korpella, Robert. 'Why Is My John Deere Tractor Spitting out Smoke?' Home Guides | SF Gate, http://homeguides.sfgate.com/john-deere-tractor-spitting-out-smoke-97149.html. 14 December 2018.
Korpella, Robert. (2018, December 14). Why Is My John Deere Tractor Spitting out Smoke? Home Guides | SF Gate. Retrieved from http://homeguides.sfgate.com/john-deere-tractor-spitting-out-smoke-97149.html
Korpella, Robert. 'Why Is My John Deere Tractor Spitting out Smoke?' last modified December 14, 2018. http://homeguides.sfgate.com/john-deere-tractor-spitting-out-smoke-97149.html
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