4300

darrenjttu

Silver Member
Joined
Oct 1, 2015
Messages
100
Location
Glen Rose, Tx
Tractor
JD 4300
I have been using my 4300 a lot lately and the motor has turned off and I cant figure out why. It only happens when I have been using it for a while and then when I go over a big bump or rock the engine dies. Some times I can restart it right away but most of the time I have to wait around five minutes. I cant figure it out. I check all the wires and looked for a loose connection but every thing it tight. I initially thought electrical or seat safety button but those have all checked out fine. Any thoughts?
 
Fuel shutoff solenoid/thermistor?
 
/ 4300
  • Thread Starter
#5  
Can the safety switch under the seats go bad? I suspect it might not be working wright. Can I bypass it to see?
 
Just put a jumper wire in the connector. Easy to do, and the way I have run mine for 16 years.
 
/ 4300 #7  
Its there a way I can test the fuel shut off solenoid/thermistor?

Be careful working on the shut off. The coil in it runs at about 6 volt but pulls in at 12 volt. The thermister reduces the voltage. If you do not reduce the voltage you will find smoke escaping from the valve and its a SOB of a job to get it back in.....
 
/ 4300
  • Thread Starter
#8  
I zip tied the seat safety switch today and ran tractor hard for 3 hours moving rocks. It didn't shut down once. I hope that was the problem.
 
I had that same symptom once. It turned out to be a loose battery connection. I thought it was the seat safety switch
Lynn
 

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