M923 NHC250 stalls when stopping. Idle seems low too.

[1 Patriot-of-many]

How do I set the idle higher on the NHC250? Starts right up, but releasing the throttle suddenly it will die, or driving forward or backward and stopping it will die.. I replaced the big canister filter recently but still have the issue. Any suggestions on a sight glass to install in the fuel line before the pump to see if this is air in the fuel?

 

[carlandedith]

It sounds like your getting air in your fuel line.
I had the same problem before, it started out with a lose of power then started dying at idle.
My fuel line was coming lose where it feeds into the injection pump

 

[Bill Nutting]

Because the fuel is being sucked from the tank, finding air leaks can be hard. Mine was loosing prime and it made it hard to start. I installed a 24volt electric fuel pump at the tank so I was pushing the fuel up to the engines fuel pump. After running at an idle for a few minutes, we spotted the leak. It was a plastic bypass tube on the fuel pump (I think). I replaced the cracked line with copper and it hasn’t lost prime since. Once I found my problem, I removed the electric fuel pump but left the fittings in place. This way if I ever have to look for an air leak in my fuel system again, I can simply put the electric pump back in to pressurize the system...

 

[simp5782]

Idle adjustment is the remove the plug from the back of the governor bell and turn the flathead screw inside clockwise for higher

 

[1 Patriot-of-many]

Thanks guys, now I need to do the grunt work looking for a leak. Thank you for the idle speed knowledge.

 

[Bill Nutting]

Idle adjustment is the remove the plug from the back of the governor bell and turn the flathead screw inside clockwise for higher

Hey Simp, I lIke your avitar!