Kohler surging at lower throttle

[Jdershimer]

Replaced my Kohler carburetor because the original was leaking gas got a replacement off of Amazon installed it, engine runs fine in the high throttle indent, but it lower RPMs it surges and wants to shut off

 

[wh cc guy]

Welcome. Try turning the adjustment screws.

 

[-CӞ]

while getting by with the Amazon carb,
rebuild (or even just refurbish/clean real well) the OEM carb (assuming it is) and later go back to that.
they’re often still better than modern knockoffs.
good luck!

 

[spndncash]

is the float set correctly and do you have air leaks between the carb and engine? Chris is right though the chinses amazon carbs are terrible.

 

[Jdershimer]

Welcome. Try turning the adjustment screws.

Yep, tried that, gonna clean and reinstall own carb

 

[fhiggenbottom]

Low-cost carburetor rebuild kits are readily available on Amazon and are usually priced at less than $10. A rebuild is a fairly simple process usually requiring less than an hour without expensive, specialized tools and there are many tutorials for how to do a rebuild on YouTube. Just disassembling and cleaning has its problems and if not careful (in spite of everything you do to prevent it) it could result in a torn bowl gasket or leaking bowl nut gasket as the result of old and dried-up gaskets. If that happens during disassembly the carburetor will require installation of new gaskets which are included in a rebuild kit. But if you still prefer to try first just cleaning and reinstalling your OEM carburetor and that doesn't stop your leak problem a simple in line fuel cut off valve usually available on Amazon for less than $5 will solve your leak problem.

I gave up on Chinese knockoffs after multiple attempts to use them failed and decided to rebuild my OEM gravity fed Walbro carburetors which immediately solved my problems of fuel leaking and the engine not idling properly no matter how many adjustments were made to the carburetor jets. The rebuilds were simple, quick and relatively inexpensive and allowed my Kohler 12.5 vertical shaft engines to once again run as designed with NO FUEL LEAKS. But just to be sure they don't leak again I installed an inline fuel shutoff switch for each of them which allows me to sleep comfortably at night without the worry of a late-night fuel leak and possible fire while my riding mowers are parked in the garage.