1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 296Get this manual
11-5 DF40QHDF50QH Data DF40QH DF50QH
VALVEVALVE GUIDE
Valve diameter
Tappet clearance IN (Cold engine EX condition)
IN EX STD STD IN EX IN STD Limit STD Limit STD
mm (in) mm (in) mm (in) mm (in) degree degree mm (in) mm (in) mm (in) mm (in) mm (in)
24.6 (0.97) 21.5 (0.85) 0.18 0.24 (0.007 0.009) 0.18 0.24 (0.007 0.009) 30, 45 15, 45 0.020 0.047 (0.0008 0.0019) 0.070 (0.0028) 0.045 0.072 (0.0018 0.0028) 0.090 (0.0035) 5.500 5.512 (0.2165 0.2170)
Valve seat angle
Valve guide to valve stem clearance
Valve guide inside IN,EX diameter Valve guide protrusion IN,EX
STD STD STD Limit Limit Limit Limit Limit STD Limit STD Limit STD STD STD Limit STD Limit