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Small Engines (Lawn Mowers, etc.)/1998 John Deere LX279 Solenoid


QUESTION: I made the mistake of not noting what wires went where when trying to replace my solenoid for the starter and since it took longer to get the part I forgot the order.  When mounted the bottom has a longer stud which I am pretty sure was the cable to the positive lead of the battery.  the shorter stud I am pretty sure had the copper wire from the starter and the brown wire.  There is a white wire that I know connects to the other terminal on the bottom.  I have a blue wire which I am pretty sure goes on the top terminal when mounted but not sure where the green wire goes.  Any help would be appreciated.

ANSWER: How many small wires are there?

2 big wires correct?

How small pins/posts on the solenoid?

What is the solenoid part number?


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QUESTION: (3) total small wires, a white one that can only connect to the "slot terminal" a green one and a yellow one.  Then there is a large brown wire that I am pretty sure went to one of the two large studs on the bottom of the solenoid.  The starter has a built in twisted copper wire that can only connect to the closest large stud on the solenoid.  The only other connection is the positive cable from the battery.  The solenoid has the two small terminals on the top of the solenoid that have a washer and bolt that slide into the starter holes.  The bottom of the solenoid has two studs with one being a little longer that the other. There is also a connector that the white wire goes to with a crimped type terminal connector.  It is on the bottom of the solenoid.  The two small wires (green and yellow wires) both have half circle connectors and I am pretty sure the yellow one went on one top small connector cause I took a picture after almost unhooking everything but that one.  There is no part number or identifying number whatsoever on the part.  I can get the number off the box. The mower is a late 90s John Deere LX279.  The box the part came in has AM102577 below the barcode and 20141205DY2 also on it.  Hoep this helps

Based on pictures of the part, the small spade terminal on the solenoid is the when for the 12 volt DC start.  With the mower is the start position, aka, sitting on the seat, clutch in, blades off, when you turn the key switch to the start position one of the wires should have 12 volts DC to activate the solenoid and turn the starter.  

Which wire has 12 v DC when trying to start the mower?


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Eric A. Jones


Lawnmower Repair . Certified Master Service Technician from B&S. Have 23 years experience on B&S, Lawn Chief, Weed Eater, Echo, Peerless, Wheel Horse, Snapper, Atlas, MTD, McCulloch, Homelite and many other numerous brands. Specialize in electrical repair.


Born and raised in the midwest. Started tinkering with engines when I was about 14 on my Suzuki RM-80. I began lawn mower repair at a small hardware store. I knew absolutely nothing. I read lots of repair manuals and met an older fellow who taught me many lessons. I continued working on small engines through high school and paid my way through college working on mowers at the same hardware store. Decided to get away from the midwest and mower repair so I joined the Air Force. I repaired air traffic control electronic equipment and ended up in Hawaii where I got a part time job at Small Engine Clinic. I gained a lot of experience from the Small Engine Clinic and had a blast repairing small engines. I then took the Briggs and Stratton Master Service Technician test and earned my MST. I then traveled to Wisconsin where I attended the factory update training seminar and received formal training. Continued working on mowers part time as I completed 20 years of military. Retired from the military on a Friday and continued in the lawn and garden industry the next Monday.

MAS Aerospace Operations BA Mathematics AAS Electronic Communications AAS Electronic Technology

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