Why do manual cars/motorcycles stall if you don’t give them gas as you let go of the clutch?

Question

Why do manual cars/motorcycles stall if you don’t give them gas as you let go of the clutch?

In: 0

Answer 1

Engines generate more power the faster they’re running (generally speaking).

In order to get the car rolling, you need enough power (torque) to overcome the cars inertia.

If you don’t give enough power the engine can’t complete its cycles and so it just stops running.

You can fix this by applying more gas and increasing the power output of your engine, or by lifting the clutch slower so that it slowly starts slipping and gradually bringing the car up to speed instead of dumping the entire weight of the car on the engine at once.