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Starting Circuit Used in Solex Circuit

 STARTING CIRCUIT :

   There is a starter valve in the form of a float disc with holes of  different sizes. The starter valve is operated by a starter lever. The Starter lever is connected to a lever in the dash board. At the time of starting , the starter lever is operated by the driver from the dashboard, and the position of starter valve is adjusted in such a way that he bigger holes are the connecting holes. These holes connect the petrol jet and starting passage. Now, more fuel comes from petrol jet.



This petrol mixes with the air coming from the air jet and flows to the engine through starting passage. This air fuel mixture is rich enough for starting. At this time, the throttle valve is in closed position. 

After the engine has started, the starter lever is brought to the second position. Now, smaller holes in the starter valve connect the passage. Therefore, less amount of petrol comes and mixes with the starting air supply. In this position, The throttle valve is also partly opened so that the petrol is also coming from the main jet. This reduced mixture supply is sufficient to keep the engine running. When the engine reaches the normal running Temperature, the starter is brought to 'off' position. 

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