JD 2305 Repetitive Diode Failure

[Samw41240]

Engine will not start. Replace fuel solenoid diode. Engine starts and runs fine for 1 to 30 minutes then dies and will not start. Have replaced diode 3 times with same results. Any help on what may be causing the diodes to keep failing?

 

[5030]

Bad ground. Had the same issue with one of my Kubota's Cold not figure it out, finally my Kubota tech discovered the issue.

 

[Samw41240]

Is the frame ground from the negative battery terminal the only ground location?

 

[5030]

On my M9000's? no. there are a couple grounding points on the units.