Yamaha EF4500iSE Theory & Diagnostics Manual page 91

Camshaft:
Camshaft outside diameter
Cam dimension
Camshaft diameter
Valve:
Valve
Face diameter " A "
Stem diameter " B "
Stem length " C "
Valve face contact
width " D "
Valve stem runout limit
" θ "
Valve guide
Guide inside diameter
Stem to guide clearance IN
Valve clearance (cold)
Push rod:
Runout limit
Valve spring:
Free length
Set length
Set force
Tilt limit
Current Model Specifications and Wiring Diagrams – EF2400iS
MAINTENANCE SPECIFICATIONS
Unit
mm (in)
" A "
" B "
mm (in)
IN
EX
IN
EX
IN
EX
IN
EX
IN
EX
EX
IN
EX
mm (in)
mm (in)
IN
EX
IN
EX
IN
EX
Standard
IN
26.9 ±0.05
(1.06 ±0.002)
22.0 ±0.05
(0.87 ±0.002)
14.965 ~ 14.990
(0.5892 ~ 0.5902)
24.0 (0.94)
22.0 (0.87)
5.5 (0.22)
5.5 (0.22)
65.9 (2.59)
66.2 (2.61)
0.7 (0.03)
0.7 (0.03)
•••
•••
5.5 (0.22)
5.5 (0.22)
0.04 ~ 0.06 (0.0016 ∼ 0.0020)
0.06 ~ 0.08 (0.002 ∼ 0.003)
0.1 (0.004)
0.1 (0.004)
0.5 (0.02)
26.5 (1.04)
26.5 (1.04)
21.6 (0.85)
21.6 (0.85)
4.5 kg (9.9 lb)
4.5 kg (9.9 lb)
•••
3-15
7-4
SPEC
Limit
EX
26.68 ±0.05
(1.05 ±0.002)
22.03 ±0.05
(0.87 ±0.002)
14.950
(0.59)
•••
•••
•••
•••
•••
•••
1.7 (0.067)
1.7 (0.067)
0.01 (0.0004)
90°
5.4 (0.21)
5.4 (0.21)
•••
•••
•••
•••
•••
25.0 (0.98)
25.0 (0.98)
•••
•••
•••
•••
1.6 (0.06)