2003 ST 4 Stroke 9.9/15HP Johnson outboards Service Manual, Page 15Get this manual
GENERAL INFORMATION
SERVICE DATA Data
10 R, TE, EL VALVENALVE GUIDE
Valve diameter IN EX Valve clearance (when cold) Valve guide to valve stem clearance IN EX IN STO STD STO LIMIT EX STD LIMIT Valve guide inside diameter Valve stem outside diameter Valve stem end length Valve stem deflection Valve stem runout Valve head radial runout Valve head thickness Valve seat width IN,EX IN EX IN ,EX IN ,EX IN ,EX IN ,EX IN ,EX IN ,EX STD STD STO LIMIT LIMIT LIMIT LIMIT LIMIT STO STO LIMIT Valve spring tension STO LIMIT mm(in) mm(in) mm(in) mm(in) mm(in) mm (in) mm(in) mm(in) mm (in) mm(in) mm(in) mm(in) mm(in) mm(in) mm(in) mm(in) mm(in) mm(in) mm(in) kg (Ib) kg (Ib) 26 (1.0) 22 (0.9) 0.080.12 (0.0030.005) 0.130.17 (0.0050.007) 0.0100.037 (0.00040.0015) 0.070 (0.0028) 0.0350.062 (0.00140.0024) 0.090 (0.0035) 5.5005.512 (0.21650.2170) 5.4755.490 (0.21560.2161) 5.4505.465 (0.21460.2152) 2.2 (0.09) 0.016 (0.006) 0.05 (0.002) 0.03 (0.0012) 0.5 (0.02) 0.91.1 (0.0350.043) 32 .52 (1 .2803) 32.40 (1 .2756) (19.8) at length 28.5 mm (1 .12 in) 7.6 (16.8) at length 28 .5 mm (1 .12 in)