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No spark onan 2 cly gen cranks has gas no run

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  • 2 Answers

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

Hi there,
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Posted on Jan 02, 2017

  • 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

  • 332 Answers

SOURCE: I have a onan marquis 5500gold gen in rv when I

Possible low oil / low oil switch

Governor is out of adjustment

Altitude settings are incorrect

Idle control circuit

Posted on Mar 08, 2010

  • 202 Answers

SOURCE: my onan 6500 gen cranks slow and won't start new

Your solenoid might be bad or your starter motor might need new carbon brushes. If you can take out the starter motor and see if you can manually rotate it, if it is not to hard to turn it, if hard to turn manually your starter might have something bad inside. A bad bearing or bushing. One more thing try this while cranking try to tap the starter motor.

Posted on Apr 01, 2010

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SOURCE: I have an ONAN Microquiet

Remove the float bowl and the fuel solenoid from the bottom of the carburetor. In the area where the solenoid screws into there is a jet. Most likely there is debris in the jet orifice. You cn use a small nail or a scribe to GENLTY scrape in the throat area of the jet to clear any obstructions. Then spray carb cleaner into the jet orifice area as a final cleaning procedure. Before you re-install the float bowl also remove the fuel supply hose from the carb and spray carb cleaner from the float needle area back to the supply connection. You may have to remove the float pivot pin but, I would not remove it unless your absolutely sure that there is debris in the float valve needle area. Getting ready to install the float bowl.... spray the plunger of the fuel solenoid with carb cleaner. Once your sure that the fuel supply passages are clear install the float bowl and solenoid. Then connect the main fuel line and test the generator.

There is one more thing you can check but you have to be real careful. That is checking fuel supply during engine cranking with the fuel hose removed. (FIRE DANGER) There should be good fuel flow via that fuel tank, fuel pump and fuel filter during cranking. If you don't have good fuel flow with the fuel supply hose removed from the carb, the problem can be debris in the bottom of the fuel tank, a clogged fuel filter or a bad fuel pump.

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Posted on Sep 30, 2010

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Huffy 5000 gen. started once after purchase then gas drain and gen stored. will not start now. new gas in tank, oil has been changed, spark at spark plug ( good not great) old gas drained from carb bowl,...

Hi men2cu...
Try this method, being you have spark and gas getting to the carburetor...

Get a can of starting fluid, and spray a small amount of it into the carburetor and then try to crank it again...if it cranks and runs then problem fixed...if it cranks and shuts off right away, then you have some trash in your inlet valve in your carburetor.
You can try tapping the carburetor lightly with a hammer and sometimes that will dislodge the float needle if it doesn't dislodge the needle valve then the carburetor will have to be disassemble and cleaned.
Once this is complete your generator should run fine.
Please take time to rate me

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Onan generator service codes

Check the spark plug and the ignition coil for good sparking.

Get the spark plug out, or with another spark plug connected to high voltage cable, outside the motor, the outer part of the plug connected to motor ground and see if spark is present at cranking.

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The gen. is not the problem, the engine start circuit is not functioning. You need to look at the starter solenoid and starter.

If you need further help, I’m available over the phone at

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