What does the choke do when the engine starts?
The automatic choke regulates the air/fuel mixture during engine start up. It produces a richer fuel/air mixture when the engine is cold, then gradually makes the fuel mixture leaner as the engine warms up.
When to move choke control to normal position?
*Cable-style choke control pull-knobs should be pulled out to activate the choke . As the engine operating temperature warms and normal fuel flow is established, the choke control will need to be SLOWLY moved back to the normal operating position, as not to cause the engine to stall from too much fuel.
How to adjust the automatic choke on an aircooled engine?
When this valve is closed the flow of air is very much reduced and the fuel/air mixture is rich. When the valve is open the flow of air is maximized and the fuel/air mixture should be correct for a warm engine.. The engine must be cold to make this adjustment. Remove the air cleaner. Find the automatic choke.
When to check the choke on a carburetor?
Step 1: Wait until morning to check the choke. Check the choke and see if it is closed when the engine is cold. Step 2: Remove the air filter. Locate and remove the engine air filter and housing in order to access the carburetor.
What happens if you leave the choke on during engine warm up?
Solution An engine that requires the choking ( partial or full ) after initial engine warm up is an indication that the engine fuel air mixture system is out of adjustment. Leaving the choke on while operating will result in excessive fuel consumption, irregular engine power performance and eventually may even damage the engine.
When to move choke control back to normal?
As the engine operating temperature warms and normal fuel flow is established, the choke control will need to be SLOWLY moved back to the normal operating position, as not to cause the engine to stall from too much fuel. The speed at which this control is moved back into the normal operating position will vary.
Why do you have to open the choke plate when starting a car?
When doing a cold start, the choke should be closed to limit the amount of air going in. This increases the amount of fuel in the cylinder and helps to keep the engine running, while it is trying to warm up. Once the engine has warmed up, a temperature sensing spring slowly opens the choke plate to allow the engine to breath fully.
When to turn off choke control on outdoor power equipment?
We do not recommend that any type of outdoor power equipment be operated after initial warm-up and with the choke control outside of the normal run position for longer than 5 minutes. Some engines utilize a manual fuel primer bulb to enrich the ratio of fuel in the fuel air mixture for initial engine starting.