1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 201Get this manual
ENGINECOOLING DisassemblyInspectionPro 785 Pro 785 Engine DisassemblyInspection Cont10 Remove reed cage, reed spacer, and inner gasket
11 Measure reed stop height between tip of reed and stop as shown (A)Stop height should be .350" (9 mm) (Q
Reed Valve Inspection
12 Measure air gap between fiber reed and reed block as shownThe air gap should not exceed .015" (.4 mm) If clearance is excessive DO NOT attempt to reverse the reeds to reduce the air gap Always replace them if damagedCheck each fiber reed for white stress marks or missing materialReplace if necessaryReed Pedal Clearance .015" (.38 mm) maxExaggerated for illustration