I was thinking head gasket too. It’s not on throttle up. It’s all the time at all throttles but only when it gets warmed up. It sounds like it’s coming from the carburetor area so maybe if it’s a head gasket it’s echoing around in the tins. I’ll diagnose it later. My back is spent from working on it today.
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1872 with 50C deck
1862 with 50C deck
1641 with 48GT deck
364 snow blower
IH Cub Original with deck
GREEN 317 with integral sleeve hitch, front hydraulic
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