YEC YZF-R6 SS KIT 2004, Manual

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26.Front Fork Spring
Specification
CAUTION:
1. The spring is longer than the STD in overall length because of its specification. For
setting up, use the supplied collar instead of the STD.
2. Preload is set so that it provides 0 mm with the fork assembly fully extended when
the adjuster projects 20 mm. When the front forks are free from load other than their
own, the apparent preload is approximately 7 mm because the rebound spring
keeps the fork from full rebound.
3. The spring rate is identified by the number of lines on its end.
Basic setting
Parts List
No. PART No. PART NAME Q'TY REMARKS
1 5SL-23141-80 SPRING, 1 0.90 kgf/mm
1 5SL-23141-85 SPRING, 1 0.95 kgf/mm
1 5SL-23141-90 SPRING, 1 1.00 kgf/mm
1 5SL-23141-95 SPRING, 1 1.05 kgf/mm
2 5SL-23118-70 SPACER L=53 mm
–80 –85 –90 –95 STD
Free length 290 mm 290 mm 290 mm 290 mm 250 mm
Spring rate 0.90 kgf/mm 0.95 kgf/mm 1.00 kgf/mm 1.05 kgf/mm 0.85 kgf/mm
No. of ID marks 3 4 5 6 Nil
Preload adjuster 20 mm (up to top end)
Oil level 106 mm (when compressed) Approx. 490cc
Suspension oil Yamaha Suspension Oil 01
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