Honda EU3000is: Still having surging problems
Posted Aug 31, 2023, 10:36 PM UTC
16
Surging is usually caused by a lean condition, as supported by you having to choke it halfway. I bet the carb jet has junk in it.
1
How do I fix that?
1
Cleaned one of these carbs before. Drain gas and put in mower to not waste sea foam. Wash tank with fresh fuel and drain again, cleaning any filters. Then clean carb again
1
Any luck fixing this?
1
No…. I just run it on half-choke all the time, which resolves it. But that’s what I’m trying to fix. Based on my research, I think it’s the jets that need to be cleaned—but no way in hell am I doing that myself. I’ll have to take it in somewhere eventually. Not sure where though.
1
Does it do it under load?
1
Yes
1
Yes. Why?
1
And you put seafoam in the gas?
Yes Seafoam is mixed into the gas
Than there is a possibility that if the jets are clean there is a vacuum leak. The gasket between the carb and engine is deformed or leaking allowing air to bypass in.