Robin EC12 User Manual

2) PILOT SYSTEM
The pilot system feeds the fuel to the engine during idling and low-speed operation.
the pilot
air jet.
The fuel-air mixture
is fed to the engine through the pilot outlet and the bypass.
At idling speed,
the fuel is mainly fed from the pilot outlet.
The fuel is fed through the main jet to the pilot jet, where it is metered and mixed with the air metered by
3) MAIN SYSTEM
The main system feeds the fuel to the engine at medium and high-speed operation.
The fuel is metered
by the main jet and fed to the main nozzle. .The air metered by the main air jet is
mixed with the fuel through the bleed holes in the main nozzle, and the mixture is atomized out of the
main bore. It
is mixed again with the air taken through the air cleaner into an optimum fuel-air mixture,
which
is supplied to the engine.
4) CHOKE
The choke is used for. easy starting when ' the engine is cold. When the starter is operated with a closed
choke, the negative pressure applied to the
main nozzle increases and draws more fuel accordingly thus
starting up the engine more easily.
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Robin EC12 Specifications

General

Brand	Robin
Model	EC12
Category	Engine
Language	English