1985-1995 Polaris Snowmobiles Master Repair Manual, Page 379Get this manual
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CARBURETION 1987 Star Trak, Star
Indy Sport
EC34-2PM-03 Main Jet180 Pilot Jet35 Air Screw1.0 turn
Jet Needle5DP7-3 Cut Away3.0
1000-3000 3000-5000 5000-700