Question about Briggs & Stratton Briggs Stratton Vanguard V - Twin Vertical Ohv Engine with Electric Start 23 Hp, 1" X 3 5/32" Shaft, ModelNo. 386777 - 0036 - E1

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After about 30 to 40 minutes of use (varies, the

I have a Simplicity Citation with a Briggs 23 HP Vanguard engine. After about 30 to 40 minutes of use (varies, the engine acts likes it would if being choked (pulling up on the choke does nothing). After the mower sits for a moment, it will mow for another 10 to 20 minutes (varies) it will do it again. HELP!!

The mower was services at the beginning of this season. The mower is nine months old.

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I have a 7 year-old craftsman mower with a 22 HP Briggs engine that has the same issue. After about an hour, the mower acts as if it is starving for fuel and then stalls. Then after about 5 minutes of sitting, it will run for a little while longer.
If your engine is similar to mine, then its carb has a fuel shut off solenoid which shuts off fuel to the Main Jet when Voltage is removed to prevent backfiring when the key is shut off.
Unfortunately, this solenoid can also cause the carb to starve for fuel when not working properly. In my case, when I cleaned the solenoid and the solenoid's connections, the tractor had no problem after that.

Hope that helps,
Steve

Posted on Aug 02, 2009

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