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|Onan 5500 marque runs for 2 minutes cold then stops||Jim||11-4-17|
|My 2007 Onan 5500 marque runs for 2 minutes cold. Once it warms up it stops, it will continue to run if I manually hold the choke closed. I have cleaned the fuel tank, hoses and filters. 5 gal of new fuel. Pump seem to work fine. I clean the carb twice with Sea Foam and then had it sonic cleaned by a carb shop. Same issue, no change. Starts cold, runs for about two minute with the choke automatically closed until its warm and when the choke automatically opens the generator stops. I can keep it running by manually holding the choke closed.|