Float Valve Needle

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.

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.

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.

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.

removed carburetor, removed bowel, float and needle. Replaced needle on float put bowel back on and put carburetor back on engine

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

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

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

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.

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.