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All the sudden starts surging, pic of carburetor.

#1

H

hollydolly

Bought new in 2010, Zero turn JD EZ Track 54 inch
All the sudden it started surging, dies at idle. The only time it stops surging is at full throttle with blades engaged.
Tried to add pic but says file too large for server ???


#2



Deleted member 97405

The carburetor has two circuits. Sounds like the low/idle circuit picked up some debris. This means your fuel system and carburetor probably needs cleaned.

If you can clean it yourself, great! But if you're not ready to take it to the shop just yet, replace the fuel filter....If it runs fine at full throttle and under load, it is ok to run it!

You can have the carburetor/fuel system cleaned or run it and hope the dirt passes through. You're not going to hurt anything by running it since it runs fine under load and at full throttle.


#3

H

hollydolly

Will1988 said:
The carburetor has two circuits. Sounds like the low/idle circuit picked up some debris. This means your fuel system and carburetor probably needs cleaned.

If you can clean it yourself, great! But if you're not ready to take it to the shop just yet, replace the fuel filter....If it runs fine at full throttle and under load, it is ok to run it!

You can have the carburetor/fuel system cleaned or run it and hope the dirt passes through. You're not going to hurt anything by running it since it runs fine under load and at full throttle.
Click to expand...
I replaced air, fuel filters, plugs, 2 bottles of seafoam. Same problem. How do I post a pic


#4



Deleted member 97405

hollydolly said:
I replaced air, fuel filters, plugs, 2 bottles of seafoam. Same problem. How do I post a pic
Click to expand...
There is an 'attach files' button right below here...hit 'reply', and you'll see it.

1673296977682.png


#5

H

hollydolly

Will1988 said:
There is an 'attach files' button right below here...hit 'reply', and you'll see it.

View attachment 63173
Click to expand...
it says, the uploaded file is too large for the server. it is just a picture of the carburetor


#6



Deleted member 97405

hollydolly said:
it says, the uploaded file is too large for the server. it is just a picture of the carburetor
Click to expand...
Sometimes a high resolution picture is too large for the server. If on mobile, taking a screenshot can help reduce file size, or if on a computer, use the Snip tool to copy and paste the pic into the chat. Those are all the tricks I use. I work at a Deere dealership, so all I need is the model (serial number would be better) of your mower and I can find info on the carburetor, although I'm not sure we need that at this point since it just sounds like your system needs cleaned. If your mower has a Briggs engine, your carb may have plastic internal parts that have warped from the fuel. If cleaning doesnt help it, you'll have to replace the carb, possibly. That is all the advice I can give you for now until you get the carb checked out or cleaned. Anything else is just speculation. Good luck!


#7

Scrubcadet10

Scrubcadet10

I've had better luck with Berrymans B12 chemtool as a fuel additive for cleaning. I've used in my own Cub a time or two when i'm too busy to work on it, and it clears it up within a few hours running.


#8

H

hollydolly

Scrubcadet10 said:
I've had better luck with Berrymans B12 chemtool as a fuel additive for cleaning. I've used in my own Cub a time or two when i'm too busy to work on it, and it clears it up within a few hours running.
Click to expand...
Thank you


#9

H

hollydolly

Will1988 said:
Sometimes a high resolution picture is too large for the server. If on mobile, taking a screenshot can help reduce file size, or if on a computer, use the Snip tool to copy and paste the pic into the chat. Those are all the tricks I use. I work at a Deere dealership, so all I need is the model (serial number would be better) of your mower and I can find info on the carburetor, although I'm not sure we need that at this point since it just sounds like your system needs cleaned. If your mower has a Briggs engine, your carb may have plastic internal parts that have warped from the fuel. If cleaning doesnt help it, you'll have to replace the carb, possibly. That is all the advice I can give you for now until you get the carb checked out or cleaned. Anything else is just speculation. Good luck!
Click to expand...
1673368346500.jpeg


#10

StarTech

StarTech

Being a twin barrel carburetor is very possible the main jets are loose as their retaining o-rings will shrink and harden with age. When this happens they leak excess fuel themselves leading to a surging engine.
These tiny o-rings are available from Kawasaki dealers like JD or small shops like mine when your are a local customer. I do mean tiny. You can even loose the jets if not careful upon carburetor disassembly.


#11

H

hollydolly

StarTech said:
Being a twin barrel carburetor is very possible the main jets are loose as their retaining o-rings will shrink and harden with age. When this happens they leak excess fuel themselves leading to a surging engine.
These tiny o-rings are available from Kawasaki dealers like JD or small shops like mine when your are a local customer. I do mean tiny. You can even loose the jets if not careful upon carburetor disassembly.
Click to expand...
Can I get to the jets by taking the cover off with the 3 Phillips screws?


#12

StarTech

StarTech

Nope. They are contain inside the fuel transfer (emulsion) tube inside the fuel bowl. So the carburetor and intake manifold has to be removed from the engine.
1673370185686.png


#13

H

hollydolly

StarTech said:
Nope. They are contain inside the fuel transfer (emulsion) tube inside the fuel bowl. So the carburetor and intake manifold has to be removed from the engine.
View attachment 63180
Click to expand...
Thank you


#14

R

ragain's repair service

hollydolly said:
Bought new in 2010, Zero turn JD EZ Track 54 inch
All the sudden it started surging, dies at idle. The only time it stops surging is at full throttle with blades engaged.
Tried to add pic but says file too large for server ???
Click to expand...
you have lean fuel condition could be carburator or gaskets causing lean fuel condition


#15

R

ragain's repair service

StarTech said:
Being a twin barrel carburetor is very possible the main jets are loose as their retaining o-rings will shrink and harden with age. When this happens they leak excess fuel themselves leading to a surging engine.
These tiny o-rings are available from Kawasaki dealers like JD or small shops like mine when your are a local customer. I do mean tiny. You can even loose the jets if not careful upon carburetor disassembly.
Click to expand...
this carburator is a problem child and very expensive if purchased from dealership but a cheap carburator even if new might sometimes take more than one carburator to get a good one also check intake it can cause your fuel problem


#16

J

Johner

As above "Star Tech" had same problem, replaced o'ring runs great. They are very small mine was cracked.


#17

H

hollydolly

Today, i choked it a little and it ran smooth until i engaged mower and started surging. Set throttle normal and it surges, engage mower and runs smooth.
No problems for 11 years, basic maintenance and since new 100% gas.


#18

H

hollydolly

Johner said:
As above "Star Tech" had same problem, replaced o'ring runs great. They are very small mine was cracked.
Click to expand...
where is the O ring?


#19

StarTech

StarTech

hollydolly said:
where is the O ring?
Click to expand...
Again they are on the jets inside the fuel transfer tube. That is if you haven't already lost the jet(s).
1673791339586.png
And here is a size reference.
1673793975756.png


#20

H

hollydolly

StarTech said:
Again they are on the jets inside the fuel transfer tube. That is if you haven't already lost the jet(s).
View attachment 63208
And here is a size reference.
View attachment 63209
Click to expand...
Thank you, I will take the carb off and take it apart.


#21

H

hollydolly

Is there a diagram, schematics of my carb.


#22

StarTech

StarTech

https://outdoorpowerinfo.com/repairs/briggs_intek_v-twin_carb.asp


#23

H

hollydolly

StarTech said:
https://outdoorpowerinfo.com/repairs/briggs_intek_v-twin_carb.asp
Click to expand...

OMG, thanks a million. Downloaded and printed.


#24

H

hollydolly

StarTech said:
https://outdoorpowerinfo.com/repairs/briggs_intek_v-twin_carb.asp
Click to expand...
Do you have a part # for O ring?


#25

Hammermechanicman

Hammermechanicman

hollydolly said:
Do you have a part # for O ring?
Click to expand...
www.ebay.com

Fuel Transfer Tube Seal Nozzle Bowl Gasket Oring for Nikki Twin | eBay

Model: For Briggs & Stratton Nikki V Twin Carburetor 54832. Nikki Two Barrel Carburetor Rebuild Kit #54832. Briggs & Stratton Nikki V Twin Carburetor 54832. (1) Nozzle Gasket #841649. (1) Bowl Gasket #69099.
www.ebay.com


#26

H

hollydolly

Hammermechanicman said:
www.ebay.com

Fuel Transfer Tube Seal Nozzle Bowl Gasket Oring for Nikki Twin | eBay

Model: For Briggs & Stratton Nikki V Twin Carburetor 54832. Nikki Two Barrel Carburetor Rebuild Kit #54832. Briggs & Stratton Nikki V Twin Carburetor 54832. (1) Nozzle Gasket #841649. (1) Bowl Gasket #69099.
www.ebay.com
Click to expand...
I quit ebay when they started wanting more of financial info.


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