Hi, 
I need to overhaul my partner's Briggs & Stratton mower engine.     Was running rich/poorly and over the last few months got worse. Now just splutters and dies.  It's a fuel problem for sure, so I've sourced a new diaphram & gasket and will strip, clean and rebuild the carb, so need the workshop manual to adjust and tune it.   
It's a Model 100000   500 series single cylinder vertical crankshaft,
engine number (from engine cowl) is:    10T502-0188 H1 11110421      which I understand means it was manufactured in 2011.   
 

I don't have the manual for that engine however there's really no adjustments for the carb.
 
Here's the diagram for the carberator:
https://www.partstree.com/models/10t502-0188-h1-briggs-stratton-vertical-engine/carburetor-fuel-supply-4/ 
 
As long as you pay attention / look at the parts diagram it's a very simple carb to work on..
 
 
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