Question about Watts Onan Portable Generator - 4000 , Model# 5500

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My onan k5000 will only start with starting fluid But won't stay running

Like I said it will only start with starting fluid but won't stay running

Posted by Anonymous on

5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 77 Answers

SOURCE: onan 4000 start good runs only ten minutsand shuts down,starts up

First locate the oil pressure switch and see if you can bypass it,then see if it runs. If not check the fuel filter and fuel pump,make sure solonoid for fuel pump is kicking on.

Posted on Aug 10, 2009

  • 16 Answers

SOURCE: Onan Marquis Gold 5.5 HGJAB 1038C. Won't start.

Test the solinoid with an ohms meter and if the circuit is open replace the solinoid.

Posted on Jan 15, 2010

jgwhomeequip
  • 1902 Answers

SOURCE: our onan generator ran out of gas. we refueled but

No, not the filter, you will need to try to prime the carb better then with starting fluid, pour some gasoline down the carb, you may have to do this a few times, but everything will fire back up again once you get the air out of the system

Posted on May 25, 2010

kel1guy2002
  • 3740 Answers

SOURCE: Onan 5500. Has spark. Has

If it starts when you add fa fuel source to the carb throat it is not the oil level sensor. The oil level sensor and generator fault circuits all shut off the spark. You have a fuel blockage most likely in the carb float bowl caused by debris / corrosion that has made its way into the fuel jet orifice located inside the hole that the fuel bowl nut threads into into. Get some carb cleaner and shoot into the hole that the float bowl nut threads into. Make sure you dump the fuel float bowl contents. With the bowl removed use a spray can lid or something similar to check fuel flow. Fuel selector on float down you should have fuel flow. Genyly lifting the float to level the fuel flow should stop.
If you do not have any fuel flow then there is a problem with the fuel supply. Remove the fuel supply hose at the carb. Feul should flow freely. Good flow from hose = float needle problem.
No flow from hose = check fuel filter and fuel tank outlet / fuel selector for debris.

If you have checked all of the above then jumper pins 5 to 9 on the main board. You should hear the fuel pump running. If you don't hear it running then the fuel pump has probably failed.

Reconnect and re-install everything and fuel leak test before starting.

Thanks for choosing FixYa.

Kelly

Posted on Sep 03, 2010

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Oct 22, 2009 | Watts Onan Portable Generator - 5000 ,...

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