Small Engine Troubleshooting Problems? Ask a Mechanic Now.
LX144 is not a good model number. But # ***** cause of battery draining is voltage regulator. Unplug it and test for voltage draw.
You get any spark when unhooking battery cables?
Briggs engine, voltage regulator on the side of engine. Is charging system working? Does battery voltage go above 13 volts with engine running?