View Full Version : Help, 14 hp Briggs Vanguard carb flooding!

09-21-2009, 10:05 PM
I have 14 HP Briggs Vanguard Model series 261700, (manufactured 1990) that the carb keeps flooding when the mower sits unused for a few hours. Once the engine starts the engine runs fine. I replaced the needle valve and also cleaned the needle seat with carb cleaner and a cotton swab, the brass needle seat is not removable and seems clean. I checked the float for any leaks, but it did not find any. When the float is pushed up the needle valve seems to be sealing, as I cannot blow air through the carb fuel pipe with my mouth. Any suggestions on what else could cause this would be appreciated. Thanks.

09-21-2009, 10:52 PM
If you post a correct model and type number maybe someone can lend a hand.....

09-21-2009, 11:04 PM
14 Hp Vanguard, Model 261772, type 0128-01

Here is a link to the briggs website


09-21-2009, 11:35 PM
There must be a flaw in the seat someplace, If you can't get it to stop flooding while parked install one of these;



09-22-2009, 03:02 PM
Shut the fuel off when not in use(like Restrorob said) or put a new carb on it.

09-22-2009, 09:21 PM
I have had 2 Kohlers and 2 Briggs that seem to have this problem. Sometimes they don't have any problems, then bam, forced oil change. Being gravity fed fuel systems, I second installing a fuel shut off valve even if you think you fix the problem.