1985-1995 Polaris Snowmobiles Master Repair Manual, Page 10Get this manual
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MODELS AND SPECIFICATIONS 1987 Model Identification
Star Trak
0871027 Fan Cooled Single 244 72 60 Mikuni VM30SS Slide Standard COl 12V 100W 109276.9 40101.5 3486.3 3178.7 1538.1 133.5338.9