2006-2008 Polaris Snowmobiles FS/FST Service Manual., Page 83Get this manual
EFIIgnition Systems TPS Idle Speed Adjustment
12Verify the TPS voltage is 0.5 +- 0.01 Vdc with the throttle plates closedSlowly turn the idle speed adjustment screw (A) clockwise until the voltage displayed on the multi meter reads 0.585 Vdc (FST) or .56 Vdc (FS) +- 0.1 VdcCarefully tighten the lock nut (B) while maintaining the voltage settingSynchronization ScrewThrottle Arm TabScrew Mount Slowly turn the synchronization screw inwards until the instant the voltage on the multimeter changesBack the screw out so the voltage reads 0.5 +- 0.01 VdcNOTE: When turning the synchronization screw, do not push the screwdriver with enough force to move the throttle cable camDoing so will affect the TPS voltage reading on the multimeter4