1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 454Get this manual
DF4050 "K5" ('05) MODEL
Item VALVEVALVE GUIDE
Valve diameter Tappet clearance (Cold engine condition) Valve seat angle Valve guide to valve stem clearance IN EX IN EX STD STD IN EX IN EX Valve guide inside diameter Valve guide protrusion Valve stem outside diameter Valve stem end length Valve stem end deflection Valve stem runout Valve head radial runout Valve head thickness IN, EX IN, EX IN EX IN, EX IN EX IN, EX IN, EX IN EX Valve seat contact width Valve spring free length Valve spring tension Valve spring sequareness IN EX STD Limit STD Limit STD STD STD STD Limit Limit Limit Limit Limit STD Limit STD Limit STD STD STD Limit STD Limit Limit