2007-2011 Polaris IQ Snowmobiles Service Manual, Page 278Get this manual
Engine and Cooling Systems 2007 600 IQ 121SwitchbackLX-2008 CFI LX Cooling System
SURGE BOTTLE
HOSETHROTTLE BODY OUT TO SURGE TANK (CFI ONLY)
RH PERIMETER COOLER
REAR COOLER (REVERSED ON S.B HOSESURGE BOTTLE TO ENGINE IN