2003-2006 Kawasaki KFX400 service manual, Page 24Get this manual
CHASSIS 6-2
REAR SHOCK ABSORBER
SUSPENSION SETTING
SPRING PRE-LOAD ADJUSTMENT Refer to the base manual, noting the following (see P6-65) Using the universal clamp wrench, turn the adjuster to adjust the spring pre-loadSpecial ToolUniversal Clamp Wrench57001-S052