Starts But Stops after 2 Seconds Everytime Now

[RCW]

You have a stop solenoid feed issue.
Is this right?
It cranks starts and as soon as /or within seconds of letting off the key from crank it dies.

Say you replaced the stop relay, is a little odd because it shouldn't have one.

There are two power feeds and a ground that go to the stop solenoid.
#1 feed is the White from the starter, this is the pull in signal.
#2 feed is the Red / Black this is the hold signal.
Black is ground.

The fact that you say when you wiggle the key the lights flicker is pointing to a bad switch or wiring connection.
With a simple test light put it on the red back at the solenoid, if the light flickers or does not stay lit with the key in run, you will need to chase the issue down.

Yellow is crank signal, blue is hold signal.

View attachment 147021

Steve/Jonny and Mike - - -

I'm so glad @North Idaho Wolfman posted this.

@Russell King was heading that direction also.

Key switches are known to go bad. A tractor of that vintage is also prone to some bad connections.

Betting a $7 test light will serve you well.......and I'm not good at electrical stuff at all.

Good luck!

 

[jonny5757]

well so far i have changed the stop solenoid, changed the fueses, new ingition switch, battery is good, new air filter and fuel filter, and new fuel, and it slill starts but wont run. i have a new fuel pump to put on next, need help

 

[jonny5757]

Your profile says 1998 Kubota, but nothing else.

If you told us what Kubota you're working with, it would be helpful.

Is it a tractor, excavator, UTV, skid steer?????

What model?

Starts but doesn't run - - does it shut down when releasing the key?

sorry, its a b2100

 

[North Idaho Wolfman]

well so far i have changed the stop solenoid, changed the fueses, new ingition switch, battery is good, new air filter and fuel filter, and new fuel, and it slill starts but wont run. i have a new fuel pump to put on next, need help

You need to read Post #18 and test that accordingly.
You are not getting hold power to the solenoid.
Remove the solenoid off the tractor and start that tractor, does it run?

 

[jonny5757]

sorry, its a b2100

it runs for about 2 seconds after the key is turn off and i just put a new ignition switch in today , samething.

 

[jonny5757]

You need to read Post #18 and test that accordingly.
You are not getting hold power to the solenoid.
Remove the solenoid off the tractor and start that tractor, does it run?

thank you

 

[jonny5757]

thanks for all the help, i got the tractor to run, i took the stop solenoid out and it started and ran but it would not shut off so i move the lever by the end of the throttle rod end, it shut off the motor, i guess i have a bad connection.

 

[mendonsy]

It is stories like this one that make me really glad that my b7500 does not have a fuel solenoid, just a manual push-pull shutoff.

 

[jonny5757]

It is stories like this one that make me really glad that my b7500 does not have a fuel solenoid, just a manual push-pull shutoff.

thanks for the thought