Michael McCarthy 1 #1 Posted September 21, 2020 Bought a B-111 from a guy who did a partial rebuild. He sold it to me on the way out of town, so I can't ask him anything directly. The last thing he said was that it runs off battery only. I can't find anything that remotely looks like an alternator, and there is only a ground wire, and a hot to the starter connected to the battery. Any ideas on how to reinstall/retrofit a generator? That wouldn't be a starter/generator would it? The engine is a Briggs & Stratton 252707. Thank you, Mike Share this post Link to post Share on other sites
pfrederi 18,810 #2 Posted September 21, 2020 Welcome. Your B&S engine has an unregulated charging system. With engine running a multimeter should show about 13.5 to 14.0 volts at the battery Wirng diagram is here Share this post Link to post Share on other sites
WHX?? 52,277 #3 Posted September 21, 2020 48 minutes ago, Michael McCarthy said: He sold it to me on the way out of town Did he leave voluntarily or involuntary?!?!? Seriously Look for wires coming out from under the engine tin(shroud) You should find one that runs the lights and one that charges the battery. A third wire may be present that grounds out the magneto for engine kill. Share this post Link to post Share on other sites
pfrederi 18,810 #4 Posted September 21, 2020 If you are not seeing 13.6v or more battery voltage running and If your multimeter will measure DC amps you can unplug the wires coming from the engine. Hook the multimeter red lead to the red wire from the engine the black lead to the battery + terminal With engine running you should see 2-3 amps. Share this post Link to post Share on other sites
953 nut 61,052 #6 Posted September 21, 2020 This engine manual may be helpful too. If you need further help please let us know. 1 Share this post Link to post Share on other sites
WHX?? 52,277 #7 Posted September 21, 2020 Howd you find that Richard I was lookin all over for it? Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,604 #8 Posted September 21, 2020 And an engine service manual Garry Share this post Link to post Share on other sites
WHX?? 52,277 #9 Posted September 21, 2020 Jeepers cats here I thought I had my search skills down pat! Yes let us/them guys know you need more help! Share this post Link to post Share on other sites
Michael McCarthy 1 #10 Posted September 21, 2020 Thank you to all for such quick responses. I'll look for all of the above. Mike 1 Share this post Link to post Share on other sites
Achto 29,547 #11 Posted September 21, 2020 Service & a smile. 1 Share this post Link to post Share on other sites
953 nut 61,052 #12 Posted September 22, 2020 12 hours ago, WHX24 said: Howd you find that Richard I was lookin all over for it? Just put engine model number (252797) in the search box and there it was. Share this post Link to post Share on other sites
WHX?? 52,277 #13 Posted September 22, 2020 1 hour ago, 953 nut said: Just put engine model number (252797) in the search box and there it was. Share this post Link to post Share on other sites
