Yamaha VK540EF Service Manual page 138

REAR SUSPENSION
This model has a "Easy adjust" system for the
Full rate adjuster. The bolt has teeth on it. So
when the bolt is turned, it rides up and down the
bracket.
NOTE:
S The nut has to be loosen first, while the bolt is
held in place with a wrench.
S Then the bolt can be turned to adjust the shock
position up or down.
S If the bolt is turned with the nut tight, it is pos-
sible to strip the teeth off the bolt.
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INSP
ADJ