Make your own free website on Tripod.com
Previous Toc Next

Picture

CARBURETOR MODEL 2140

primary bores of the carburetor creates a low pressure area in each venturi. This low pressure is commonly referred to as a vacuum. Normal atmospheric air pressure in the float chamber causes a metered fuel discharge into the low pressure area in the venturi.

is reduced. The venturi vacuum produced by this reduced air flow is insufficient to operate the main metering system. The high manifold vacuum resulting from these conditions provides the pressure differential used to operate the idle system.

3.   IDLE SYSTEM

The idle system has not been changed. At low speeds and at idle with nearly closed throttle plates, the air flow through the primary venturi

A balanced fuel distribution at the idle is provided by equalizing slots in the manifold mating surface of the carburetor. These semicircular grooves join the primary bores to the secondary bores. They insure an even distribution of fuel throughout the manifold.

Picture

IDLE DISCHARGE HOLE

Picture

IDLE SYSTEM -3


Previous Toc Next