As of 2016, common Honda generator repairs include cleaning or replacing the carburetor, and changing one or more of the carburetor's gaskets. When the generator starts but does not continue to run, working on the carburetor typically corrects the problem. When the generator leaks gas, replacing the carburetor gasket, float bowl gasket or carburetor bowl gasket may solve the problem. If leaking continues, the fuel tank or fuel line may be the cause.
A Honda generator that starts but does not keep running might have a clogged carburetor. Leaving fuel in the generator over an extended period causes clogging. A sticky, thick substance develops when some of the components of the fuel evaporate. The substance can clog the carburetor ports and jets, which causes engine stalling. If draining the old fuel and cleaning the carburetor with a carburetor cleaner does not solve the problem, the owner may need to rebuild or replace the carburetor.
Owners who do not plan to use their Honda generators more than once a month should follow the manufacturer's instructions to drain their carburetors, which prevents fuel deterioration and future clogging.
When a generator leaks gas from the bottom of the carburetor, the carburetor gasket, float bowl gasket or carburetor gasket might be missing or dried up. If so, the owner should replace the carburetor gasket to stop the leak. If the leak continues, the owner should replace the float bowl gasket. If the gas leak persists, it may be necessary to replace the carburetor bowl. When gas continues to leak even though new gaskets are in place, the owner should inspect the fuel tank and fuel line for cracks, and replace them.