Husqvarna 965030298, 965030296, 1018855-26 manual Carburettor, Operation

CARBURETTOR

Operation

The carburettor operates differently in the following modes:

•Cold start

•Idling

•Part throttle

•Full throttle

In the cold start mode the choke valve (D) is fully closed. This increases the vacuum in the carburettor and fuel is easier to suck from all the diffuser jets (E, F and G). The throttle valve (H) is partly open.

In the idling mode (H) the throttle valve is closed. Air is sucked in through an aperture in the throttle valve and a small amount of fuel is supplied through the diffuser jet (G).

In the part throttle mode the throttle valve

(H)is partially open. Fuel is supplied through the diffuser jets (F and G).

In the full throttle mode both valves are open and fuel is supplied through all three diffuser jets (E, F and G).

D E F G

HG

HF G

E F G

84 – English