2002-2006 Yamaha SX Viper 700 Series Snowmobile Service Manual, Page 298Get this manual

2002-2006 Yamaha SX Viper 700 Series Snowmobile Service Manual, Page 298

YAMAHA POWER VALVE SYSTEM (Y.P.V.S ADJUSTMENT INSP ADJ YAMAHA POWER VALVE SYSTEM (Y.P.V.S ADJUSTMENT WARNING When adjusting
coupler leadBattery () terminal Y.P.V.Sadjustment coupler: YS-430921 NOTE: When battery power is applied, the Y.P.V.Svalve
should fully openS If the valve does not fully open, check the Servo motorRefer to "YAMAHA POWER VALVE SYSTEM (Y.P.V.S" WARNING
Failure to use the proper Y.P.V.Sadjustment coupler may result in internal damage to the CDI unitSXV70ER Turn the main switch
to "ON"S Slide back the adjuster covers Loosen the locknuts Turn the adjusting nuts 10 in or out until the specified clearance