Should Choke Be in or out?

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.

How do you know if choke is open or closed?

When the choke butterfly is allowing the most air flow, without restriction, it is open. Like a door. Open lets things through. when the choke is restricting the flow of air, it is closed.

Is it bad to leave the choke on?

Leaving the choke on for too long will cause unnecessary engine wear and waste fuel. This is also bad for the environment. ... One a cold day, the engine can need more fuel than usual to get running - this makes the mixture 'rich', and this is what the choke does.