GCV530 Running issues

Murphy’s Mowers

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Joined
Apr 25, 2024
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Good evening all.
I have a GCV530 in a HF2417.
Suffering from engine speed stability (huntung) issues.
So far I’ve set the valve clearances, changed oil, oil filter, air filter and fuel filter, changed the plugs, checked the spark is working, put a brand new Honda oem carb on it, changed the regulator spring, changed the fuel pump and prayed to the Lawn Mower Gods.
Nothing works!
It is definitely running lean, spark plugs are white, and it’ll run perfect if i partially block the inlet manifold.
Please help before i throw a match at it.
 
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