A choke cam ensures the engine receives the proper amount of fuel during cold starts. By adjusting the air-fuel mixture, it facilitates engine starting in low-temperature conditions, ensuring smooth operation until the engine reaches normal operating temperature. Taking care of it, keeping it clean and lubricated, avoiding over-tightening it, and disabling it when not needed can help the cam last for many more years. The choke cam: a small device with a big impact on starting.