2007-2008 Polaris IQ Snowmobiles Service Manual, Page 108Get this manual
Fuel Systems Fuel Rail BleedingPressure Testing
All CFI engine fuel return hoses feature an inline Schrader valve that can be used to bleed the fuel system pressure and observe running system pressure using fuel pressure gaugeSCHRADER VALVETo bleed the fuel system pressure after the engine is stopped, place the tool's bleed hose into an appropriate fuelhandling containerOpen the valve to release the pressure and residual fuelClose the valve, then remove the gauge and adaptor from the fuel hose Schrader valveReplace the Schrader valve dust cap
Disconnect Fittings
The fuel hoses on CFI engines feature disconnect fittings that require special tools to removeThe fuel line disconnect tool kit, PS-47152, supplies one 516 and one 38 quick disconnect toolThese tools are also commercially available at local auto parts stores
SCHRADER VALVE
The model year and engine model will determine which fuel pressure tool adaptor is required to complete both tasks
Pressure BleedTesting Tools
YEARMODEL 2007 600 CFI Shallow Core Deep Core 2007 700 CFI 2008 ALL CFI 123PRESSUREBLEED TOOL ADAPTOR 1