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In the conventional carburetor, a venturi in the airflow creates a lowered pressure and this is enough to encourage the flow of fuel through the metering jets. The flow rate is critically sensitive to the fuel pressure at the jet, i.e. the hydrostatic head owing to the depth of fuel between the jet and the float level.
Two-barrel downdraft Holley 2280 carburetor Cross-sectional schematic. A carburetor (also spelled carburettor or carburetter) [1] [2] [3] is a device used by a gasoline internal combustion engine to control and mix air and fuel entering the engine. [4]
Villiers, used on UK motorcycles and small engines. Walbro and Tillotson carburetors for small engines. Weber carburetor, Italian, now made in Spain, owned by Magneti Marelli. Wheeler–Schebler Carburetor Company. Zama Group, primarily an OEM provider. Zenith Carburetor Company, American subsidiary of Société du carburateur Zénith.
to power small craft such as jon boats, dinghies, canoes, etc; to provide auxiliary power for sailboats; for trolling aboard larger craft, as small outboards are typically more efficient at trolling speeds. In this application, the motor is frequently installed on the transom alongside and connected to the primary outboard to enable helm steering.
A small boat stuffing box comprising an adjusting nut, a locking nut and a sleeve. On a boat having an inboard motor that turns a shaft attached to an external propeller, the shaft passes through a stuffing box, also called a "packing box" or "stern gland" in this application. The stuffing box prevents water from entering the boat's hull.
For small engines, even only one half of the carburetor was used, with the other half blinded and partially cut off. The basic carburetor size can be selected by the butterfly valves, for DCO/DCOE the sizes are 38/40/42/45/48/50/55, with 40/45/48/50/55 being more common and available today.
Honda Marine logo. Honda Marine is an American company headquartered in Alpharetta, Georgia. [1] Honda Marine is part of "Honda’s Power Products" division. [1] They build a full line of four-stroke outboard marine engines.
The US EPA is required by Section 511 of the Motor Vehicle Information and Cost Savings Act to test many of these devices and to provide public reports on their efficacy; the agency finds most devices do not improve fuel economy to any measurable degree, unlike forced induction, water injection (engine), intercooling and other fuel economy ...