QuestionIm working on a B&S Mod# 31F707 Type# 0112 E1. I rebuilt the engine reinstalled it on the tractor. It started ok but ran kinda fast, so I turned it off to check settings on the governor and now it turns over hard. I can take out the spark plug and it turns over fine. Im going to check valve clearances, the flywheel didnt have a key, battery voltage was 12.6. Plug gets spark but its looks weak,How do I check the voltage regulator? Whats the output suppose to be? I set air gap to .012, plug gap to .030, Intake to .003 and Exhaust to .008. Any suggestions on what else I need to check?
AnswerFlywheel key part number 222698s. Parts lists shows a key...all Briggs engines, modern engines, use the same key part number. First, install a flywheel key and torque the flywheel nut. Second, check the governor adjustment. When this is done the engine may run fine.
Proper governor adjusting procedure link:
http://faqs.custhelp.com/cgi-bin/faqs.cfg/php/enduser/std_adp.php?p_faqid=3435&p...
Engine check chart link:
http://www4.briggsandstratton.com/miscpdfs/RNT/Engine%20Specifications%20Chart_m...
Regulator links:
http://faqs.custhelp.com/rnt/rnw/img/enduser/35-parts_of_the_electrical_system.j...
Alternator ID link:
http://www4.briggsandstratton.com/miscpdfs/RNT/alternator_replacement.pdf
http://www4.briggsandstratton.com/miscpdfs/RNT/alternator_id.pdf
Alternator check link:
http://faqs.custhelp.com/cgi-bin/faqs.cfg/php/enduser/std_adp.php?p_faqid=3438&p...
