Throttle Adjustment

There are two main types of throttle adjustment: hand throttle adjustment and automatic adjustment. With a hand throttle adjustment, you move the throttle with your hand to control the speed of your engine. This is often found on smaller gas-powered engines like lawn mowers, chainsaws, and leaf blowers. With an automatic throttle adjustment, the engine speed is controlled by a device that senses the air intake. This is often found on larger gas-powered engines like powerboats, planes, and lawn tractors.