How do you set engine idle on 2003 1200 xlt waverunner?

To set the engine idle on a 2003 Yamaha 1200 XLT WaveRunner, first, ensure the watercraft is on a stable surface and the engine is warmed up. Locate the idle adjustment screw on the throttle body, usually marked with a "+" and "-" sign. Turn the screw clockwise to raise the idle speed and counterclockwise to lower it, making small adjustments while checking the engine's RPM with a tachometer. After adjustments, test the idle by starting the engine and ensuring it holds a steady RPM.