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Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 14818
Experience:  Certified on Onan and Generac generators
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Generac 5500 gen is fouling plugs quickly. oil has been

Customer Question

Generac 5500 gen is fouling plugs quickly. oil has been changed regularly. it runs great but after about 4 hours the plug has to be changed also at this time the muffler is shooting flames out and red hot.
Submitted: 1 year ago.
Category: Small Engine
Expert:  Hank F. replied 1 year ago.

What are the model and serial numbers of the genset?

What fuel is it running on?

Are the plugs oil fouling or fuel fouling?