2009 Yamaha Motorsports Big Bear 400 4x4 IRS Owners Manual - Page 29
2009 Yamaha Motorsports Big Bear 400 4x4 IRS Manual
Page 29 highlights
HOW TO AVOID THE HAZARD Always ride at a slow speed when the ATV is in differential gear lock, and allow extra time and distance for maneuvers. TIP G If the differential gear lock is not engaging properly, turn the handlebar back and forth to help it engage. G Riding before the differential gear lock is properly engaged will cause the engine speed to be limited until engagement is complete. G When the ATV is in four-wheel-drive differential gear lock, the maximum traveling speed is limited to 31 km/h (19 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 4-6 for a detailed explanation of this switch.) EBU18270 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. 4 1. 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. Throttle lever Once the engine is running, movement of the throttle lever will increase the engine speed. 4-10