Starting problem

[Tripod]

I have a kubota 30/60 tractor with the front mounted mower.
My problem is
Turn the key glow plug light comes on--goes off and I start the mower.
It will start right up but as soon as I let the key go it stalls. It will stay running if you hold it in the start position but like I said as soon as it goes back to the on position it quits.

Replaced the ignition switch and either jumped or eliminated the cut off sensors
And still nothing.

Any advice would be appreciated.

 

[al b]

Does it have an electric fuel shutoff? How about an electric fuel pump?

 

[Tripod]

Al b

Thanks for responding!! This mower belongs to my brother and has not gotten back to me. I will let you know

 

[Tripod]

Al B

Just heard from my brother and he said it was the fuel injector solenoid.

He says it is powered by two different sources. One when it is in the start position and another in the run position.

Thanks for your response

Tripod