2009 Yamaha Motorsports Big Bear 400 4x4 IRS Owners Manual - Page 28
2009 Yamaha Motorsports Big Bear 400 4x4 IRS Manual
Page 28 highlights
4 1. On-Command differential gear lock switch "4WD"/"LOCK" To release the differential gear lock, stop the ATV and push the switch to the "4WD" position. EWB00092 WHAT CAN HAPPEN The ATV handles differently in four-wheel drive than in differential gear lock in some circumstances. Changing from four-wheel drive to differential gear lock or vice versa while moving may cause the ATV to handle differently unexpectedly. This could distract the operator and increase the risk of losing control and causing an accident. HOW TO AVOID THE HAZARD Always stop the ATV before changing from four-wheel drive to four-wheel-drive differential gear lock or vice versa. EWB00101 WARNING WARNING POTENTIAL HAZARD Riding too fast while the ATV is in fourwheel-drive differential gear lock. WHAT CAN HAPPEN All wheels turn at the same speed when the differential gear is locked, so it takes more effort to turn the ATV. The effort needed to turn increases with the riding speed. You may lose control and have an accident if you cannot make a sharp enough turn for the speed you are traveling. 4-9 POTENTIAL HAZARD Changing from four-wheel drive to fourwheel-drive differential gear lock or vice versa while the ATV is moving.