2007-2008 Polaris IQ Snowmobiles Service Manual, Page 164Get this manual
Engine and Cooling Systems 20072008 600700 RMK Cooling System
HOSETUNNEL COOLER TO SURGE TANK CAP SURGE TANK
HOSETHROTTLE BODY OUT TO SURGE TANK (CFI ONLY)
HOSEENGINE OUT TO TUNNEL COOLER (THERMOSTAT OPEN)