Generator quits after 2 min!
Could use some help as I'm stumped now. I have an Onan Marquis 5500 model# HGJAB-901D First, the genset wouldn't run and I figured out it was the fuel pump- replaced that. I've tried cleaning it ...
Forum Discussion
dougrainer wrote:smithrock wrote:
Oil is good, altitude is good. Just ran it without the fuel cap- it hiccuped at about 2 min then ran fine. Went to put a load on it-run A/C and it dies. It can't handle a load.
Never had an issue with this generator until now it sat for about 4 months without running. I'm thinking carb issue but not understanding why it would hunt and die when putting a load on it?:?
Because you do NOT understand the APU carb system:B. When you apply a load, you have to increase the fuel supply thru those jet holes. If any of those holes are clogged or restricted you will get hunting/surging and what you are experiancing. Doug
Ok, thank you for explaining to me! Makes sense :). I'll see if I can have it cleaned properly.
I did adjust the spring in the slots down a couple from where it was stock- it's been running for 20 min with a load on it with minimal hunting :h. Could that make a difference?
