1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 163Get this manual

1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 163

ENGINECOOLING Exhaust Valve Cleaning ProcedurePro 785 Adjuster Bracket Valve Spring Valve matches contou Exhaust port Bushing
with shop rag to prevent debris from entering the cylinderRemove cable end bolt and exhaust valve from valve coverRemove
rubber boot from valve coverWash valve assembly with solvent or soft wire brush to remove accumulated oil and carbonDifficult
deposits may be removed by carefully scraping with piece of wood or similar materialDo not scrape the valve with any hardened
material as the valve can be damagedSlight scratches may be removed with Crocus cloth (do not use coarse abrasives) 9Inspect
the exhaust valve, exhaust valve shaft, cover bushing, rubber boot and springReplace any parts that show unusual wear, cracks,
distortion, or damage10Clean the exhaust valve gasket surfaces and install new gasket12The exhaust valve must be installed