Ventrac 4500Z stops running unexpectedly

[Randy Miller]

I'm running a 4500Z with the Kubota engine. The machine has 800 hours on it I'm now having troubles with it stopping unexpectedly. Sometimes it quits after 5 minutes and sometimes it will run fine for an hour. Seems to idle forever fine but as soon as it's under load the issue begins. I use ethanol free gas, I tried choking engine when it was about to die and I could see some blue flame from the muffler few times i did that. It acts like its starving for fuel.

It will immediately re-start after stalling and might run 1 minute or 10 before stalling again.

I need some help anyone have any idea's? Feel free to email me or just reply. I dont understand how it ran fine for almost an hour and then it started sputtering and died, but would start back up and idle fine, just not do anything once I put load on it.

 

[seville009]

I'd start by checking/replacing the fuel filter at least, just to eliminate a possible simple solution.

 

[Randy Miller]

turns out it was the vent line to the gas tank, it was plugged up, i blew it out. Used this weekend ran like it was supposed too