2010 Yamaha Motorsports Grizzly 550 4x4 EPS Owners Manual - Page 31

G G Riding before the differential gear lock is properly engaged (e.g., when the indicator and indicator light are flashing) will cause the vehicle speed to be limited until engagement is complete. When the ATV is in four-wheel-drive differential gear lock, the maximum traveling speed is limited to 35 km/h (22 mi/h). However, if conditions require full engine power to be available, push and hold the override switch to disable the differential gear lock speed limiter. (See page 4-8 for a detailed explanation of this switch.) 2WD 4WD 1 1. Throttle lever 4 EBU18281 Throttle lever Once the engine is running, movement of the throttle lever will increase the engine speed. Regulate the speed of the ATV by varying the throttle position. Because the throttle is springloaded, the ATV will decelerate, and the engine will return to an idle any time the hand is removed from the throttle lever. Before starting the engine, check the throttle to be sure it is operating smoothly. Make sure it returns to the idle position as soon as the lever is released. EBU18322 Speed limiter Your ATV was delivered with an adjustable speed limiter. The speed limiter keeps the throttle from fully opening, even when the throttle lever is pushed to the maximum. 1. Loosen the locknut. 2. To increase the maximum engine power available and the maximum speed of the ATV, turn the adjusting screw in direction (a). To de4-13