The battery on my boxxer 421 will not keep a charge

hanks75

Member
Joined
Jan 19, 2009
Messages
94
Is there a alternator on the boxxer or something else that is responsible for keeping battery charge. Technician was in the middle of a job and the battery just died
 

Shane T

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Joined
Nov 7, 2006
Messages
1,663
Location
Waukesha, WI
Name
Shane Tiegs
It has a stator and rectifier/regulator. Look in the Briggs repair manual, it will tell you how to check it. You'll need a multimeter to do so. Your mechanic can do this easily.
 
Joined
May 7, 2008
Messages
8,180
Location
PA
Name
I'm Rick James
Did you check the flux capacitor?

If not, check these out. I have a briggs too and had the same problem. Start from the battery and work your way back to the engine. Its most likely the VR that is going out or a bad battery.

Bad battery
voltage regulator is going out
bad battery wires
stator wire got cut
the magneto coils went out
 

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