[cpierce267]

I have a lawn tractor with a Briggs and Stratton 16.5hp engine. It seems over the last few years I have had to replace the battery every spring, and when I do, I have to put it on a charger after a couple of mows. The ampmeter next to the ignition does not move at all when I do get it started. A few years ago, I did jump it off of a vehicle. Which I now know I possibly ruined the regulator. I found an alternator, but can't seem to find a part number for the regulator. The engine is Model#313777-0163-E5. I also put a voltmeter on the battery, and got 12.5 volts when I tried to start it. It pulled down to aroud 6 volts without starting and when i turned the key off it gradually climbed back to 11 volts. Any help would be greatly appreciated.

 

[larrybl]

Try this, should get you a p/n for the regulator.... http://www.briggsandstratton.com/support/?NTT=313777-0163-E5

 

[cpierce267]

Thank you.

 

[DTLMG]

If you want to do a little bit of trouble shooting, you can disconnect the NEGATIVE battery cable and watch when you take it off of the battery post, is there some faint spark/arcing? If so simply start unplugging things and redo the tests to see if arcing goes away. When the arcing stops, you have found your source of your draw. HINT: look in the areas of the stator, regulator, and anti fire solenoid if so equipped.

You have not added any electrical accessories to the unit have you? If so check that as well.

Good luck

 

[cpierce267]

No I haven't added anything. Thanks for the advice, I'll give it a try.