1998-2002 Mercury Mariner OUTBOARD 2.5 – 60 HP 2-STROKE SERVICE MANUAL 2001-2003 Mercury Mariner 75-225 HP 4-STROKE OUTBOARD Service Repair Manual Mercury Mariner 2.2hp, 2.5hp, 3.0hp, 3.3hp Outboards Factory Service Manual.

1965-1989 Service Manual Application: 2 hp To 40hp 2 Stroke 1 & 2 cylinder engines. A Typical Mercury-Mariner Service Manual Contains The Following Chapters: Subjects may differ depending on year/model. RELATED MERCURY - MARINER OUTBOARD SEARCHES: Carburetor Models: CARBURETOR Theory of Operations Prime Start System This carburetor assembly uses the PrimeStart system for precise fuel delivery during start-up, at all temperatures.

Two electrothermal valves are installed on the carburetor assembly. The upper electrothermal valve controls fuel flow for carburetors #1 and #2, and the lower valve controls fuel flow for carburetors #3 and #4.

2018 John Deere X300 Manual download on this page. Before start-up, the electrothermal ram (needle) is retracted (the fuel enrichment valve is opened) according to the temperature, allowing a high percentage of fuel to flow form the flat chamber into the venturi during start-up. During start-up, the electrothermal ram (needle) is still retracted (the fuel enrichment valve is opened) according to the temperature, allowing a rich air/fuel mixture to be fed to the cylinders. After start-up, the current supplied form the electric power source and then flows to the electrothermal valves causing the wax in the valves to heat up. As the wax heats up the electrothermal ram (needle) begins to extend, partially closing the fuel enrichment valve, and reducing the flow of fuel from the float chamber into the venturi. Ibico Ibimaster 115e Manual download more. After a few minutes, the electrothermal ram (needle) is fully extended, the fuel enrichment valve is fully closed, and enrichment ceases.