Should the choke be up or down?
We would say that the “choke” is on or closed. This restriction of air flow reduces the amount of air available for combustion which means that the air fuel mixture is very rich. The “choke” is off when the choke lever is down or when the choke lever is facing you if your choke is a handle bar mount.
What happens if the choke is left on?
Leaving the choke on for too long will cause unnecessary engine wear and waste fuel. The engine needs its fuel to be vaporised in order to burn it. This is done by the carburettor where the fuel is mixed with clean air coming from the air filter, and sent into the pistons to be ignited.
Under which condition is choke is closed?
Once the engine is in use, and naturally warms up, the choke valve can be closed, to reduce additional fuel being used.
Is it bad to run an engine with the choke on?
Leaving the choke on while operating will result in excessive fuel consumption, irregular engine power performance and eventually may even damage the engine. Some engines utilize a manual fuel primer bulb to enrich the ratio of fuel in the fuel air mixture for initial engine starting.
How long do you leave choke on?
After 30 seconds is usually enough for most bikes. Especially a small thumper. Just reduce the choke slowly. If it wont idle smoothly (sounds like an asthmatic pensioner) then it probably wants the choke on a bit longer.
How do you adjust the choke on a Carter carburetor?
If not closed, loosen the three screws on the circular choke housing and turn the housing dial either clockwise or counterclockwise to open or close the choke valve. Close the valve very slowly by turning the housing dial until it just touches the carburetor throat sides. Tighten the three screws with a screwdriver.
Do you need a choke on a carburetor?
When an engine is cold, it requires a richer Air/Fuel Mixture to get started. As the engine warms up, it is able to run on a leaner mixture. The choke plate must be opened gradually to allow more air into the engine. Carburetors are available with or without a choke.
Can I drive with choke on?
3 Answers. 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.