Generac 13,000 Watt  / 13,000 Watt  Home Standby Generator Logo
Posted on Jan 20, 2010
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I have a Generac XL4000. It rill start but not run right.

I have a Generac XL4000. It rill start but unless I close the choke about 1/2 way it will not run right. The engine speed surges from normal to idle and back to normal. I evens out a little under load.

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  • Expert 172 Answers
  • Posted on Jan 21, 2010
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Joined: Jan 04, 2010
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If the area you live in has alcohol added to their unleaded gas, then you will probably need to rekit the carbuerator. Also check the spark arrestor for plugging up. Try to find a non alcohol, off road unleaded gas for your generator.

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Exha2425

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Regards,
Carl
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