This is a good service reference for troubleshooting pre-emission and emission-compliant carbs (covers OHV). Hits the variants of Briggs tank-mounted carbs and float-bowl type carbs. Useful for any brand engine.
http://www4.briggsandstratton.com/m...on_Troubleshooting_Detail_Reference_Guide.pdf
http://www4.briggsandstratton.com/m...on_Troubleshooting_Detail_Reference_Guide.pdf