This Briggs & Stratton 850 Professional-Series OHV vertical shaft engine for push mowers has ReadyStart recoil start for easy, no-prime, no-choke starts. Features Ready Start system makes starting easier, no prime, no choke Dura-Bore cast iron cylinder sleeve for extended life. Certified to CARB Tier III and meets EPA 2012 Phase 3 Standards Maintenance free Magnetron electronic ignition for quick, dependable starts. Specs Brand Briggs & Stratton Part # 121Q02-2025-F1 Shipping Weight 30 lbs. Crankshaft Diameter 1" Crankshaft Length 3-5/32" Starter Type Recoil Max RPM 3100 Carburetor Type Float Displacement 190cc Ignition System Electronic Lubrication System Splash Oil Capacity 18- 20 oz. Fuel Type Gasoline Governor System Mechanical Cooling System Air Compression Release Yes Gross Torque (ft./lbs) 8.5 Gross Torque Low Oil Alert No Oil Filter No Bolt Circle (in.) 8 Cylinders 1 Cylinder Bore Cast Iron Bore x Stroke 2.69" x 2.04" Crankshaft Orientation Vertical For Use in California Yes Fuel Tank Capacity 1.6 qt. Tapped 3/8-24