what does an engine choke do

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what does an engine choke do

A choke valve is sometimes installed in the carburetor of internal combustion engines. Its purpose is to restrict the flow of air, thereby enriching the fuel-air mixture while starting the engine.

Is the choke on or off?

The choke is only used when starting a cold engine. When doing a cold start, the choke should be closed to limit the amount of air going in. Once the car has warmed up, if the choke does not open fully, the restriction in air may result in reduced power.

Should the choke be open or closed?

On a warm engine the choke should be open. Generally, the choke should be closed for a cold start, opened for a warm start. Closing the choke, provides excess fuel which is not needed for a warm start. Excess fuel will quickly cause 'flooding' if cranking continues, even with a cold engine.

What happens if you leave the choke on too long?

Leaving the choke on for too long will cause unnecessary engine wear and waste fuel. This is also bad for the environment. The choke is mainly used during winter to help with starting. The engine needs its fuel to be vaporised in order to burn it.

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How long do I leave the choke on?

In short, leave the choke on as long as necessary, but once the motor is warmed and is idling well there is no need to keep the choke on.07-Jan-2021

Can you drive with the choke on?

The main reason that we advise not riding with the choke on is that it can be harmful to your motorcycle. Whilst driving a vehicle you need air and fuel in order for the engine to function, when you're riding with the choke on there will be an excess of fuel which means that there will also have too much air.

Should you leave a choke on when running?

Why Do I Have To Leave The Choke On? As a result of the choke, more fuel will be present in the mixture, resulting in a richer taste. In this process, the engine runs on the usual mixtures of fuel until it warms up sufficiently to do so.25-Feb-2022

How long should I leave the choke on?

How Long Should I Leave The Choke On? Most bikes will be satisfied with 30 seconds or less. You can't go wrong with any small thumper. It will only take a few minutes to reduce the choke.25-Feb-2022

Is it OK to run engine with choke on?

Leaving the choke on for too long will cause unnecessary engine wear and waste fuel. This is also bad for the environment. The choke is mainly used during winter to help with starting. The engine needs its fuel to be vaporised in order to burn it.

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Should choke be completely closed?

Generally, the choke should be closed for a cold start, opened for a warm start. Closing the choke, provides excess fuel which is not needed for a warm start. Excess fuel will quickly cause 'flooding' if cranking continues, even with a cold engine.

What does choking an engine do?

A cold engine won't vaporise the fuel as well as it would in warmer conditions, so the choke helps enrich the mixture (either by adding in more fuel or cutting out airflow) to increase the amount of combustible vapour available to start the engine.27-Aug-2019

What happens if you leave choke on engine?

Leaving the choke on for too long will cause unnecessary engine wear and waste fuel. This is also bad for the environment. The choke is mainly used during winter to help with starting. The engine needs its fuel to be vaporised in order to burn it.

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