1985-1995 Polaris Snowmobiles Master Repair Manual, Page 211Get this manual
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ENGINE ELECTRICAL
Running Ignition Timing at 3000 RPM Engine Model EC25PS-06 EC34-2PM-02 EC34-2PM-03 EC50PM-0102 EC50PM-03 EC40PL-02 EC50PL-0102 EC65PL-01 EC44-2PM-4100 MM BTDC 4.19 3.41