Outboard Marine Corporation

Donovan K Jourdan

Gene F Baltz

David J Hartke

Henry C Billingsley

Amos M Clark

Jeffrey A Berg

Disclosed herein is a fuel supply system comprising a carburetor including a fuel bowl, an air induction passage including therein a venturi, a throttle valve located in the air induction passage downstream of the venturi, a fuel enrichment conduit communicating between the fuel bowl and the air induction passage downstream of the throttle valve, and a temperature responsive valve for admitting air to the fuel enrichment conduit when the ambient temperature is above a predetermined level and for admitting air to the air induction passage when the engine temperature is below the predetermined level.

Fuel enrichment system

A manual starter is provided for an internal combustion engine including a drive member mounted for rotation and operable to start the engine when rotated. The starter includes a flexible pull element mounted for movement between a normally retracted position and an extended position, a mechanism for drivingly engaging the drive member when the flexible pull element is pulled to the extended position, and a retracting mechanism for returning the pull element from the extended position to the retracted position. The starter also includes a guide roller mounted for rotation and in frictional contact with the flexible pull element, and a mechanism responsive to rotation of the guide roller for retarding ignition spark timing as the flexible pull element moves toward the extended position, and for not retarding ignition spark timing as the flexible pull element moves toward the retracted position..

Manual starter with ignition spark retard

A system for priming and temporarily enriching the air/fuel mixture for a crankcase scavenged, two-cycle engine having a fuel pump supplying fuel to a carburetor for mixture with air for delivery to an induction manifold leading to the engine crankcase where it is compressed and transferred to the cyclinder combustion chamber through a passage, the system includes a solenoid valve controlled by a switch so the valve opens when the switch is turned on to start the engine. The valve inlet is connected to the fuel pump. The valve outlet is connected to a conduit means which is connected to the transfer passage to inject fuel to prime the engine. The valve outlet is also connected to a conduit connected to the induction manifold to enrich the air/fuel mixture therein. The fuel in conduits is drawn into the manifold after said valve closes to thereby enrich the air/fuel mixture long enough for the engine to warm up.

Growing community of inventors

Kenosha, WI, United States of America

Donovan K Jourdan