1998-2001 Yamaha YFM600FHM Grizzly Factory Service Manual, Page 51Get this manual
Rear shock absorber
The spring rate can be adjusted with the remote lever, which is connected to the spring rate adjuster with linkageThe spring rate cannot be adjusted when the TV 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
Distance
Hard position of usual two step spring
Hard position of this system
Revolution and Speed Limiter