Engine Z445/w 27HP Briggs engine surge

[eldowdy]

Try running some seafoam in the tank first, It should clean out any buildup. It will take a couple of tanks. Cheap easy 1st try solution, All gas is crap these days.

I will give that a shot.

Ed

 

[hrdman2luv]

I will give that a shot.

Ed

Is your choke separate from your throttle ?

 

[eldowdy]

Is your choke separate from your throttle ?

No it's fine. It's in the idle circuit. One of the passages is blocked and can't be cleaned. Only remedy is replacing the carb. I think the cause was a combination of fuel with ethanol and Stabil in it. I have switched to Sea Foam. I am just living with the problem. It doesn't do it while I am mowing just when the blades aren't engaged. It's not worth near $300 to replace the carb, when a couple years down the road I may need to do it again.

 

[Boudreaux In Eunice La.]

I think you have one of the Nikki carbs on that one Single bowl type or the wide double barrel ?????

The wide one is tricky.... Oh that is not a good number. I can't bring that number in my Briggs account.

You posted 44Q900-0110 is that correct ?

Let us know Mon Ami ~!~!

 

[eldowdy]

I think you have one of the Nikki carbs on that one Single bowl type or the wide double barrel ?????

The wide one is tricky.... Oh that is not a good number. I can't bring that number in my Briggs account.

You posted 44Q900-0110 is that correct ?

Let us know Mon Ami ~!~!

Yep! That's the one. It's large a two barrel carb. The only thing adjustable is the stop for the choke. I don't remember if that's a Briggs number or John Deere.

Merci,
Ed

 

[Boudreaux In Eunice La.]

There is one gasket you probably missed it is inside you have to take some screws out to get to it Did you have a gasket left over from the kit

 

[Boudreaux In Eunice La.]

check this vid out ~!~!

https://youtu.be/emsafzhGLC0

 

[eldowdy]

There is one gasket you probably missed it is inside you have to take some screws out to get to it Did you have a gasket left over from the kit

I had no gaskets leftover. I have a photo record of the entire rebuild. The gasket that was mentioned in the Youtube video was changed. All parts were replaced in their original positions. And yes it is a Nikki carburetor. It's not running rich. It surges in fast idle when not under load. I don't have an ultrasonic bath to clean it in. From what I have been told by a very good Briggs tech, it probably wouldn't help anyway. But I appreciate your trying to help.

Ed

 

[Been There]

I had no gaskets leftover. I have a photo record of the entire rebuild. The gasket that was mentioned in the Youtube video was changed. All parts were replaced in their original positions. And yes it is a Nikki carburetor. It's not running rich. It surges in fast idle when not under load. I don't have an ultrasonic bath to clean it in. From what I have been told by a very good Briggs tech, it probably wouldn't help anyway. But I appreciate your trying to help.

Ed

You have a Governor setting problem, and it will take a very high experience carburetor person to get it right. I had the same problem on my John Deere 345 years ago and I fixed the problem with a spring like the one you have on the governor-carburetor by attaching it so the governor will not move at high idle.

 

[eldowdy]

You have a Governor setting problem, and it will take a very high experience carburetor person to get it right. I had the same problem on my John Deere 345 years ago and I fixed the problem with a spring like the one you have on the governor-carburetor by attaching it so the governor will not move at high idle.

I think you maybe on to something. Have you any pics of your solution. I have observed the governor link bounce around.

Ed