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Husqvarna YTH2348 stalls after 20mins

Two issues, possibly related.
Less than 100 hours on motor

1. Have to keep charging battery. Had it checked at a local auto parts store, checked OK. Suspect bad charging system. I have not put a meter to it ...yet.

2. Unit runs apprx. 20-30 minutes just fine then suddenly acts as if it's starving for fuel and stalls. Usually starts right back up with full choke, but stalls once transmission is engaged. Battery usually too weak to restart more than twice (30 minutes after recieving a full charge). Replaced fuel filter, inspected gas cap, appears OK. Suspect I may have to replace the spark plug and clean the carb. AND address the charging system

Can these 2 issues be related or am I not even in the ball park? Your opinions welcomed. Thanks!

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  • traboH Mr
    traboH Mr Sep 20, 2009

    Thank you Mowerman for the quick response. Yes you are correct Briggs 23hp

    Fully charged the battery 12vdc. Cranked right up 13.5-14vdc at battery on full throttle... a good sign!

    Engaged the electric blade clutch engine bogged down and stalled without any load on the blades. Battery voltage down to 11.7vdc. Will not turn starter. 4.5 vdc when trying to start. New battery in order despite what the auto parts store said, yes?



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First thing to do is check and repair charging system. They are/could be related problems in that there is an electric fuel shut off solenoid on the carburetor and if the battery is going dead, it could be cutting off the fuel flow. I wouldn't worry about the spark plug or cleaning the carburetor just yet.
Put a meter on the battery terminals, run the engine at full speed and check the voltage, If you are not getting around 13,5 volts going back to the battery, repair/replace the charging system. If it is less than 2 years old, it should still be under warranty so you might want to check with your dealer. I am guessing that it is a B&S 23 HP and replacing the alternator can be expensive and time consuming

Posted on Sep 20, 2009

  • traboH Mr
    traboH Mr Oct 22, 2013

    No Ethanol gas soved this problem outright



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