2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 122Get this manual
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FUEL INJECTION EFI SYSTEM
10 Throttle Position Sensor (TPS) 3 Intake Air Temperature Sensor (IAT)
Idle Air Control (IAC)
11 Throttle Body 12 Wire Harness Assembly 13 En