Briggs & Stratton Quantum 4-Stroke Float Carburetor

⚡ FIELD SPECIFICATION SUMMARY

Reliable bowl-feed carburetor found on tens of millions of lawn mowers, vulnerable to clogged pilot jets after winter storage.

Audited Engineering & Performance Metrics

HIGH NEEDLEFixed Brass Main Jet (Clean with wire)

LOW NEEDLEFixed Idle Air Bleed Circuit

IDLE RPM3,100 RPM Governed Top Speed

POPOFF PSIFloat Needle Gravity / Low Pressure

METERING LEVERFloat Parallel to Body when Inverted

📋Specialist Advisory: Outdoor Power Equipment Standards Certified Master Technician

Surging (engine revving up and down uncontrollably) is caused 99% of the time by a gummed-up pilot jet. Clean with torch tip cleaner.