2007-2008 Yamaha Phazer Venture-Lite 500 Factory Service Manual, Page 74Get this manual
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GEAR SELECTION 4 Secondary spring twist angle 90508-55007 (Red) Seat Sheave 35 45 55 65 75 85 95 105 115
Effects Quicker upshifting during acceleration
Part no89N-17684-01 88