Briggs & Stratton 850 Specifications

Written by ken burnside Google
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Briggs & Stratton 850 Specifications
The Briggs & Stratton 850 engine is used in push lawnmowers. (lawnmower image by sumos from

The Briggs & Stratton 850 is a lawnmower engine designed to deliver easy starts, high torque and power for brush cutting and lawn mowing uses, while maintaining high reliability, light weight and low-emissions standards. It is usually configured on a gasoline-powered push-mower, for weekly or biweekly use.

Engine Capacity & Size

The Briggs & Stratton 850 series engine has 8.5 feet of gross torque, generated by a 190 cubic centimetre two-stroke, single-cylinder engine. The engine is a vertical shaft design with an overhead valve configuration. This size of engine is optimised for light weight -- the engine weighs 11 Kilogram (11kg).

Dimensions & Fuel Capacity

The overall dimensions of the Briggs & Stratton 850 series engine is 15.6 inches long (39.6cm), by 12.8 inches (31.5cm) wide, and 9.4 inches (23.9cm) deep. The engine has a cast iron cylinder sleeve with a bore capacity of 2.7 cubic inches (44.25 cubic centimetres). It burns conventional gasoline and has a 0.3 gallon (1.135 litres) fuel tank.

Configuration Options

By default, the Briggs & Stratton 850 comes with the Briggs & Stratton "Easy Start" engine initiator; this option is a large diameter self-spooling pull starter, designed to minimise the amount of force needed to get the engine started by the user. It's also an auto-choking pull starter (one that doesn't require that the user manually adjust a choke to get the engine to start), and the manufacturer warranties that if it doesn't start after two pulls of the starting cable, they'll repair it for free. Beyond this, there is an option for a fully electric starter, which will turn the engine on with a touch of a button.

Emissions Standards

The Briggs & Stratton 850 meets the EPA and California Air Resources Board (CARB) Tier III standards for engine emissions for non-transportation uses; it can reach the CARB Tier IV standards with optional configurations. Other standard features designed to make the Briggs & Stratton 850 more pleasant to be around include a commercial grade air-management system with dual seal designs, meant to reduce the amount of engine byproducts the user faces, as well as a built-in muffler and noise-cancellation system to keep the operating volume below California standards.

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