What is the recommended approach to engine braking while going downhill?

Releasing the throttle while going downhill is the recommended approach to engine braking because it allows the snowmobile to decelerate naturally while also maintaining better control over the speed. When the throttle is released, the engine's resistance helps slow down the vehicle, which can be especially important on steep inclines. This method minimizes wear on the brake system and reduces the risk of losing control by avoiding sudden stops that can occur when applying brakes too quickly.

In contrast, using full brakes immediately can lead to skidding or loss of traction, especially on slippery terrain. Keeping the throttle steady does not facilitate deceleration and could lead to increased speed on a downhill slope. Applying brakes slowly is a more controlled technique but is usually used in combination with other methods rather than as the primary means of slowing down when descending hills. Thus, releasing the throttle effectively engages engine braking to enhance safety and control.