1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 115Get this manual
FUEL SYSTEMCARBURETION Carburetor DisassemblyInspectionKeihin 25Inspect inlet needle for wear, damage, or foreign materialGood Condition Worn, Deposits
26Inspect needle seat for wear or foreign materialClean or replace jet block if seat is damagedInspect control arm return springReplace if corroded, damaged, or distorted
27Remove screw and carefully lift jet block from carb body