User Manual

GENERAL EM -7
Items
Standa
rd
([]ind
icates standard
diamet
er)
Limit
Correct
ive
action
Outer side valve Spring
Free height
Load installed
Winding direction
Out of squareness
Inner side valve spring
Free length
Load installed
Winding direction
Out of squareness
66.1mm
26.5~29
.3kg
To th e r i
ght
1.5mm
60.0mm
11.5~12
.7kg
Left sid
e
1.5mm
63mm
23.7kg
2.1mm
57mm
10.3kg
2.1mm
Replac
e
Cylinde
rblock
Cylinder
bore
To r s i o n o
f upper crankcase
Flatness
of gasket surface
Outofsqu
areness of gasket surface
Clearanc
e between tappet and crankcase tappet hole
104.00~104.03mm
Below 0.07mm
0.07mm
0.05mm
[28] 0.045~0.096mm
0.2mm
0.2mm
Replace
Clearanc
e between piston ring and piston ring groove
No.1 ring
No.2 ring
Oil ring
0.106~0.170mm
0.07~0.11mm
0.03~0.07mm
0.2mm
0.15mm
0.15mm
Replace the
piston ring
Piston ri
ng end gap
No.1 ring
No.2 ring
Oil ring
0.25~0.40mm
0.50~0.65mm
0.20~0.40mm
1.0mm
1.5mm
1.0mm
Replace
Average protrusion of piston
Gasket grade A
Gasket grade B
Gasket grade C
0.466~0.526mm
0.526~0.588mm
0.588~0.648mm
Measure
the average
protrusion and
replace the
gasket with the
corresponding
grade gasket
Piston
Piston outer diameter
Clearance between piston and cylinder sleeve
103.91~1
03.92mm
0.080~0.
130mm
Repair wi
th
oversize
or
replace
Piston pin
Outer diameter of piston pin
Clearance between piston pin and piston pin hole
Clearance between piston pin and connect-
ing rod end bush
37.994~3
8.00mm
0.007~0.
021mm
[38] 0.02
5~0.046mm
0.05mm
0.1mm
Replace
Replace b
ush
Cylinder
sleeve
Inner dia
meter
Outofrou
ndness
Out of cyl
inderness
104.00~1
04.03mm
0.005mm
0.015mm
100.25mm
Below
0.01mm
Below
0.03mm
Repair wi
th
oversize
or
replace
Cylinder head
Flatness of cylinder head bottom
Length from cylinder head top to bottom
Below 0.1
mm
94.9~95.
1mm
0.2mm
94.6mm
Repair or
replace