2007-2011 Polaris IQ Snowmobiles Service Manual, Page 181Get this manual
Fuel Systems DC-CFI Fuel Select Modes CAUTION
Always verify the ETHANOL resistor plug is installed in the selector plug if unsure of fuel typeSevere engine damage may occur if the PREMIUM resistor plug is installed when oxygenated fuelNever use oxygenated fuels containing more than 10 ethanol blendDC-CFI models allow the operator to select between 91 octane oxygenated and 91 octane non-oxygenated fuel modesThe fuel selector switch consists of PKBLK-BLKBLUE wired plug located at the rear of the clutch coverelectrical center coverWhen using oxygenated fuel, or when unsure of the fuel type inside the fuel tank, plug the 10 ETHANOL24 OHM resistor into the fuel selector plugWhen using non-oxygenated, 91 or higher octane fuel, install the NON-ETHANOL160 OHM resistor into the fuel selector plugLock Screw 10 ETHANOL24 OHM Resistor Plug Part Number =2411280 (Installed at the factory Lock Screw