Easy
30-60 minutes
This is a genuine manufacturer approved carburetor needle valve for lawn and garden equipment engines. The needle valve opens and closes to control the flow of fuel into the carburetor. It is made out of metal and it is sold individually. You would need a screwdriver and pliers to complete this repair.
Valve-float Needle 231855S
OEM part for: Briggs & Stratton Engines, Toro
Part Number: 231855S
$7.27
Factory Backorder
Date Available: Unknown 
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Compatibility
This Valve-float Needle will fit the following 4697 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
This item works with the following types of products:
- Lawn Tractor Parts
This part replaces obsolete part #: 231855
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Everything I need when I need it!!
Parts were as described and arrived in a timely manner.
Will definitely use them again!!
Thanks
Guest -
June 12, 2020
Verified Purchase
It was easy to fix carb with right parts.
Everything arrived in proper marked bags. There might have been minor delay due to Covid-19. But that was expected.
Guest -
June 6, 2020
Verified Purchase
Just what I needed.
Everything was in good condition and worked great.
Guest -
March 2, 2020
Verified Purchase
worked perfectly
did the job no problems
Guest -
October 5, 2019
Verified Purchase
Needle.
It fit perfectly! Saved the day!
Guest -
May 30, 2019
Verified Purchase
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
White smoke. Engine knocked and stalled. Crankcase filled with fuel.
Gregory - July 6, 2016
👍 7 of 10 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Socket set
1. Removed carburetor.
2. Unscrewed bell to expose float and needle valve.
3. Removed float by sliding out pin.
4. Removed needle valve.
5. Removed brass seat by tapping with 1/4" tap, inserting bolt, and pulling out with press.
6. Lightly tapped in new seat.
7. Replaced needle valve, float and bell gasket.
8. Reinstalled bell.
9. Reinstalled carburetor.
2. Unscrewed bell to expose float and needle valve.
3. Removed float by sliding out pin.
4. Removed needle valve.
5. Removed brass seat by tapping with 1/4" tap, inserting bolt, and pulling out with press.
6. Lightly tapped in new seat.
7. Replaced needle valve, float and bell gasket.
8. Reinstalled bell.
9. Reinstalled carburetor.
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Carburetor was not shutting fuel off.
Dave - June 10, 2016
👍 4 of 5 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set, Wrench Set, Brass hammer
Parts Used
Remove the float bowl. Then remove the pin from the float. Drill a little larger hole in the inlet seat then screw in a self tapping screw then pull inlet seat out. Tap in the new seat with a brass hammer. Then simply replace the float needle valve. Place the pin and float back in. Clean out the float bowl and attach it to the carburetor.
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Gasoline was getting into the engine block and hydro locked the cylinder
Michael - June 5, 2016
👍 4 of 5 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Socket set, Nutdriver
Remove carburetor, disassemble it, clean all internal parts with carb cleaner and blow out all ports with compressed air. Reassemble the carb with new float needle and bowl seal. Drain motor oil and replace with fresh oil. Since the oil had a quart of gasoline in it. I will change the oil again after 5 hours of use.
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Fuel bowl was leaking badly.
Ken - May 26, 2016
👍 3 of 4 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Socket set, Wrench Set
Simply removed the float bowl. All the parts that I that I needed to replace were right in sight, which made the repair very easy. Leak is gone.
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Needle in carbarator not shuting of gas. rubber tip old
merrill - May 6, 2019
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set
removed carburetor, removed bowel, float and needle. Replaced needle on float put bowel back on and put carburetor back on engine
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the motor was flooding
Henry - March 14, 2019
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Medium
Time
1-2 hours
Tools Used
Pliers, Socket set, 1/4 tap, 3\\
Parts Used
I removed the intake and carburetor it was easier to do that instead of just removing the carburetor. i then removed the carburetor bowl. i took out the float and needle. I used the 1/4" tap to make threads in the seat and then used the screw washer and tubing to make a puller to remove the seat. I then replace the seat put in all back together and now the mower runs like new again.THANKS
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tractor was flooding
Robert - March 3, 2019
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Easy
Time
30-60 minutes
Tools Used
Pliers, Socket set, Wrench Set, tap
Parts Used
removed carb
removed bowl
tapped valve seat with 1:4 20 tap
used 1/4 20 bolt to remove seat
tapped new seat into place using a small socket
reassembled carb and installed on tractor
removed bowl
tapped valve seat with 1:4 20 tap
used 1/4 20 bolt to remove seat
tapped new seat into place using a small socket
reassembled carb and installed on tractor
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Bad needle valve and cracked crankcase breather tube
Larry - July 17, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Wrench Set, Nutdriver, Carb cleaner
Pulled the air breather then pulled the carburetor. Disassembled the carburetor and cleaned it then made sure all the passages were clean and free of debris. Reassembled with new needle valve. Put the carburetor and breather back on and changed the oil. Changed the spark plug with the proper gap. I the set the air mixture screw at 1 full turn out from all the way screwed in and started the motor. I ended with adjusting the air mixture to 3/4 turn out. Runs great
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Gas was leaking into the oil crankcase
David - April 2, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Socket set
I noticed a small puddle on the floor. It was oil and gas mixed. Then I checked the oil level on the dipstick and it was way over full and smelled like gas. After some research I found out that the Briggs & Stratton engines (mine is a 18hp Intec) are known for the needle valve in the carburetor to go bad. The reason is that the tip of the brass valve is rubber to make the seal. Also make sure you replace the seat that the needle valve goes into because it will be worn too. A 1/4" tap fits perfectly into the seat. thread it down (carefully) and stop as soon as you feel it bottom out. I used a 5/16 socket that I drilled out so the 1/4 - 20 x 1 1/2 bolt would fit through it. Then sit the 5/16 socket over the seat and place a washer on the 1/4-20 bolt and thread into the old seat. This works as a puller and will lift the old seat out. Note: check the old seat before pulling it out to see how much protrudes out of the hole. To install the new one put a little oil on it and place it straight in the hole and use that same 1/4 - 20 bolt with a nut on the end now to drive it into the hole. Don't forget to make it the same protruding out as the old one. Reassemble the bowl on the carburetor and your done. Take your time and the repair will go pretty easy.
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Needle valve neoprene (rubber) tip disintegrated.
Frederick - October 22, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Mower
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Wrench Set, Torx bit
Parts Used
Removed carburetor. Removed float bowl. Removed float Cleaned all parts and orifices Installed new needle in float slot Installed all parts in reverse order Adjusted idle mixture and idle speed. Runs like new again.
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All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
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