2006-2008 Polaris Snowmobiles FS/FST Service Manual., Page 11Get this manual
Model Specifications Table 1-28: Electrical Alternator Output Operating Voltage Watts 13.5 Vdc (Total) Watts 13.5 Vdc (After EMS) Amps 13.5 Vdc (No Load) Ignition Timing Spark Plug Gap inmm) Spark Plug OE Equivalent 13.514.5 Vdc 780 630 60 Variable .030 (.75) Champion RC7PYC 04513967 Champion RC7PYCBX 3021837 Table 1-29: Track Width in(cm) Length in(cm) Lug Height in(cm) Track tension sag incm with 10 lbs4.54kg placed 16 in 40cm ahead of rear idler shaft 15 (38) 136 (345) (2.54) 7818 (2.22.9cm) Table 1-31: Rear Suspension Suspension Type Front Track Shock (FTS) FTS Spring Rate lbsin (Nmm) Mid Track Shock (MTS) Rear Track Shock (RTS) Lower Outer Spring Rate lbsin (Nmm) Lower Inner Spring Rate lbsin (Nmm) Upper Spring Rate lbsin (Nmm) Rear Travel Inches (cm) Fast M-10 136 Fox HPG wIFP (Rebuildable) 220 (38.5) Nitrex Gas Bag Fox HPG wIFP (Rebuildable) 715 (125) 425 (74.4) 273 (48) 14 (35.6)