2007 Polaris Two Stroke Snowmobile Workshop Repair manual, Page 96Get this manual
FUEL DELIVERY CLEANFIRE INJECTION (CFI)
Injector Replacement
The Cleanfire system utilizes different color injectorsIf you are replacing an injector you must replace it with the same color injector you removeThe color is indicated in three ways, 1) it will be on the short wire harness that is attached to the injector, 2) the injector will have colored dot on the shaft of the injector 3)it is indicated on the label of the ECUIf the color injector is not available you may replace all injectors with different color and you must program the ECU to run the new installed colorINJECTOR COLOR
NOTE: If the injector is on the upper fuel rail, only the air box needs to be removed to gain access to the failed injectorNOTE: If the injector is on the lower fuel rail, engine removal is necessary for injector accessSee "600700 HO CFI ENGINE" on page 5.29
600700 CFI Fuel RailInjector(s) Removal Installation
NOTE: When installing replacement injector(s) keep the red protective cap on the end of the injector to prevent damage when installedFollow the steps and remove when instructed to do so1Depressurize the fuel railSee "Fuel Rail Bleeding" on page 4.20Remove the panduit straps (1-4) as shown