1985-1995 Polaris Snowmobiles Master Repair Manual, Page 210Get this manual
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ENGINE ELECTRICAL
Running Ignition Timing at 3000 RPM Engine Model
EC25PS-06 EC34-2PM-Q2 EC34-2PM-Q3 EC50PM-0102 EC40PL-Q2I03 EC65PL-Q1 EC44-2PM-4100
4.19 3.41 3.41 3.2