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Old 07-03-2019, 10:40 PM   #1
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Onan generator wont keep running at higher altitude

Onan RV OG 4K gen starts and runs ok at home (about 1500 ft). Last two times camping at 5000 to 7000 ft gen starts but then dies out after about a minute. Has a new carb and fuel filter, I played with altitude adjuster, has enough oil, and enough gas in the Rv (2017 Sunseeker 3050s).
Your thoughts are appreciated
Mark
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Old 07-05-2019, 08:20 AM   #2
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If its running fine at 1500 feet and not at 7K then it is running way too rich at that altitude you may need to re-jet the carb to with a jet somewhere in-between to better handle the altitude changes and use the carb adjustment to fine tune. JMHO
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Old 07-05-2019, 07:00 PM   #3
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Wasn't aware that these carbs can be re-jetted.
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