Why does my engine only run with the choke on?
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Why does my engine only run with the choke on?
If a motorcycle or ATV only runs with the choke on, it’s because the richer “choke on” mixture is actually closer to the engine’s normal operating fuel mixture than the leaner “choke off” mixture. So when the choke is turned off, the engine gets too little fuel and too much air for it to run and it stalls.
When starting a cold engine should the choke be open or closed?
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. This increases the amount of fuel in the cylinder and helps to keep the engine running, while it is trying to warm up.
Why does a carbureted engine start poorly in cold?
When the engine is cold, fuel vaporizes less readily and tends to condense on the walls of the intake manifold, starving the cylinders of fuel and making the engine difficult to start; thus, a richer mixture (more fuel to air) is required to start and run the engine until it warms up.
What happens if I drive with choke on?
It will not damage the engine at all. All that will happen is that it will run richer, thus using more fuel. If you did it for thousands of miles you’d probably end up with more deposits in the engine/exhaust, but even that is easy to sort.
Should a carburetor be open or closed?
In carburetor engines with a manual choke, the choke should be closed for starting unless the engine is already warmed up. The choke allows a pure shot of gas to get to the engines combustion chamber to help fire the engine up.
Should I keep 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.
Is choke more or less air?
A choke reduces the amount of air, keeping the fuel amount the same, making the mixture richer. An enrichener keeps the air the same, but increases the amount of fuel, making the mixture richer.