Need help on Briggs & Stratton 6.75 HP OHV engine electric diagram

As we don't know the Briggs full model #, that would help tremendously..  
 
IF it has a low oil cut off switch, usually on the side of the block, near the sump cover,
it would have a single, thin BLACK wire going to it. 
The switch is not unusual to go bad OR if indeed the oil is low-it'll kill spark.
If it's there, simply un-plug it disabling it... 
 
To check the coil (and everything else), pull off the starter cover. 
Again, they'll be another thin black wire (not the same wire posted above)
going to the coil, (often the back side of it).  That IS THE KILL SPARK WIRE
when grounded. 
 
Un-plug from the coil. Spin the engine over(cover back on), if you have spark, 
the coil is fine. 
 
If NO SPARK, either the coil is bad, or much less likely, a bad ground between the coil and block.
 
Advise...
 
 
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I'm not seeing a low oil switch on that engine:
https://www.jackssmallengines.com/jacks-parts-lookup/manufacturer/briggs-stratton/briggs-stratton-engine/100000-19z999-series/120300-to-120399/120312-0145-e1 
 
 
The generators are what usually have the low oil switches, especially the larger ones..
 
Again, disconnecting the KILL wire should give you spark back..
 
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