1997 Yamaha YFM600FWAK ATV Service Manual, Page 21Get this manual
Rear shock absorber The spring rate can be adjusted with the remote lever, which is connected to the spring rate adjuster with linkage
The spring rate cannot be adjusted when the ATV is loaded
Force (kgf)
At the "Soft" position CD, the suspension operates with the combined spring rate of both springsAt the "Hard" position V, the spacer is moved down causing the upper spring to have shorter stroke and the bottom spring is in full operation
Soft position Hard position of usual two step spring
Distance
Hard position of this system
Revolution and Speed Limiter This ATV is equipped with an engine speed control function1) Over-revolution limiter system During normal operation (except in reverse), the engine speed will be kept below 7,800 rmin2) Speed limiter system When the reverse indicator light comes on, the signal from the speed sensor is detected and the system is activated when the vehicle speed reaches 20 km hAt this time, if the signal should not reach the COl unit because the speed sensor is broken or the coupler is disconnected, the engine speed will be kept below 2,500 rmin