Yamaha EF4500iSE Theory & Diagnostics Manual page 83

Camshaft:
Camshaft outside diameter
Cam dimension
Valve:
Valve
Stem diameter " B "
Valve face contact
width " D "
Valve stem runout limit
" θ "
Valve guide
Guide inside diameter
Valve clearance (cold)
Push rod:
Runout limit
Valve spring:
Free length
Set length
Tilt limit
Current Model Specifications and Wiring Diagram – EF1000iS
MAINTENANCE SPECIFICATIONS
Unit
mm (in)
" A "
" B "
mm (in)
IN
EX
IN
EX
IN
EX
IN
EX
mm (in)
mm (in)
IN
EX
IN
EX
Standard
IN
32.65
(1.29)
28.85
(1.14)
3.96 ~ 3.98 (0.156 ~ 0.157)
3.94 ~ 3.96 (0.155 ~ 0.156)
0.8 (0.03)
0.8 (0.03)
•••
4.0 (0.157)
4.0 (0.157)
0.1 (0.004)
0.1 (0.004)
0.5 (0.02)
25.0 (0.984)
25.0 (0.984)
15.1 (0.594)
15.1 (0.594)
•••
7-4 3-7
SPEC
Limit
EX
32.65
(1.29)
28.85
(1.14)
3.92 (0.154)
3.90 (0.153)
1.8 (0.07)
1.8 (0.07)
0.01 (0.0004)
90°
•••
•••
•••
•••
•••
24.0 (0.945)
24.0 (0.945)
•••
•••
2.0 (0.079)