2006-2008 Yamaha RS, Vector, Rage Factory Service Manual, Page 127Get this manual

2006-2008 Yamaha RS, Vector, Rage Factory Service Manual, Page 127

PRIMARY SHEAVE AND DRIVE V-BELT 2Inspect: Primary sheave spring Cracksdamage Replace3Measure: Primary sheave spring (standard)
87.4 mm (3.44 in) RSG90: 93.4 mm (3.68 in) RS90M: 89.8 mm (3.54 in) RST90 "USACanada": 89.0 mm (3.50 in) RST90 "Europe"RST90TF:
89.4 mm (3.52 in) When changing the primary sheave springs, refer to "GEAR SELECTION" in CHAPTER 24Inspect: Primary sheave