2007-2008 Polaris IQ Snowmobiles Service Manual, Page 70Get this manual
Maintenance Fuel Tank Vent System
All models feature fuel tank ventvacuum check valve systemThere are two systems used depending on the model year of the snowmobileOn some models, the ventvacuum check valve system resembles the illustration belowWhen inspecting the system, verify the hoses are not cut or kinkedVENT CHECK VALVE (ARROW POINTS AWAY FROM TANK)
Air Intake BoxPre-Filters
Inspect the inside of the air intake box and pre-filters for foreign material andor damageONE-PIECE CFI AIR BOX
ADAPTOR BOOTS