2003 Polaris Scrambler 50-90 Sportsman 90 Predator 90 Service Manual, Page 58Get this manual
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FUEL SYSTEMCARBURETION
Scrambler 90 Sportsman 90 Predator 90 Cutaway Air Screw NeedleSeat Pilot Jet Main Jet EClip 3.0 turn out from lightly seated 1.5 25 82.5 #4 from top
OPTIONAL