A SERVICE OF

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4-17
NOTE:
_
A special wrench can be obtained at a
Yamaha dealer to make this adjustment.
_
1. Special wrench
3. The length of the spring (installed)
changes 1 mm (0.04 in) per turn of the
adjusting ring.
A. Spring length
Measurement
A
:
Installed length:
Standard: 228.5 mm (9.0 in)
Minimum (hard): 220.5 mm (8.7 in)
Maximum (soft): 235.5 mm (9.3 in)
U5NF12.book Page 17 Wednesday, May 8, 2002 11:11 AM