2007-2011 Polaris IQ Snowmobiles Service Manual, Page 49Get this manual
Model Specifications Electrical Alternator Output Operating Voltage Watts 13.5 Vdc (Total) Ignition Timing Spark Plug Gap inmm) Spark Plug Track WidthInches (cm) LengthInches (cm) Lug HeightInches (cm) Track tension sag incm with 10 lbs4.54kg placed 16 in40cm ahead of rear idler shaft 15 (38) 136 (345.4) 1.00 (3.175) 781-18 (2.22.9cm) Rear Travel Inches (cm) Suspension Type 13.514.5 Vdc 400 18_ 1700 RPM Coolant Temp120_F (49_C) .027 (.70) NGK BPR9ES Torsion Springs Front Track Shock (FTS) FTS Spring Rate lbsin (Nmm) Rear Track Shock (RTS Rear Suspension IQ 136 Coupled Ryde FX MPV 170 (29.75) Ryde FX MPV .347 Square80_ (Soft)PN 7043070067PN 7043071067 .347 Square77_ (Softest)PN 7043240067PN 7043241067 .359 Square12.5# (Stock)PN 7043079067PN 7043080067 14 (35.5)