Honda V 45 SABRE-VF750S 1982 Shop Manual page 129

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CYLINDER HEADiVALVE
,
Valve spring
Free length
,.
_.
Preload/length
Cylinder head
Warpage
TORQUE VALUES
Cylinder head cover
Camshaft holder 6 mm
Cam chain guide A
Cylinder head 9 mm
Cylinder head 8 mm
Rocker aIm shaft
Cam sprocket
TOOLS
Sptei.1
V81~e gudie reamer, 5.5 rnm
Val~e
gu ide
dri~er
Common
Valve spring compressor
Valve guide remover 5 .5 mm
TROUBLESHOOTING
Inner 40.7
mrn
(1.60
in)
Outer 43.9
mm
(1.73
in)
Inner
6.39-7.81 kg/34.S
mm
(14.10
17.22
Ib/l.36 in)
~=-
Outer
12.6-14.6 kg/37.S mm 127.80-32.19
Ib/1.48 In)
8-12 N·m 10.8-1.2 kg·m, 6- 9 h ·lb)
10- 14 N·m (1.0-1,4 kg-m. 7-10 ft·lb)
39.35 mm
(1.55
in)
42.43 mm (1.67
in)
6.08 kg/34.S mm
(13.41 Ib/l.36
in)
11.99 kg/37.5
mm
(26,43Ib/1.48 in)
0.25
mm (O.OlD in)
20-25 N·m (2.0-2.5 kg·m, 14-18
ft·lb)-Apply
lOCKTITE® to the threads.
33-37 N·m (3.3-3.7
kg-m,
24 -27 ft ·lbl
21-25 N·m (2.1-2.5 kg·m, 15-18 ft·l b)
45- 50 N·m (4.5-5.0 kg-m, 33- 36 ft·lb)
18-20 N·m (1.8-2.0
kg·m
. 13- 14 ft·lb)
07984-2000000
07942- 3290200 or 07742- 0020200
07757-0010000
07742-0010100
Engine top~nd problems usually affect engine performance. These can be diagnosed by a compression test, or by tracing
nOises to the top~ nd with a sounding rod or stethoscope.
low compression
1 Valves
Inco rrect valve adjustmeflt
Burned or bent ~alves
Incorrect
~alve
timm.g
Broken val~e sprmg
2. Cylinder head
Leaking or damaged head gasket
Warped or cra cked cylinder head
3. Cylinder and piston (Refer to Section 12)
Compression too high
1 EKcessi~e carbon build·up on p iston or
combustion chamber
EKceSlive noile
1 Incorrect valve adjuurnent
2. Sticking valve or broken valve spring
3. Damaged or worn camshaft
4. Loose or worn cam chain
5 , Worn or damaged cam chain tensioner
6 . Worn cam sprocket teeth
7. WOrn rocker arm and/or shaft
10-2
136
Date of Issue : October,
1982
to
HONDA MOTOR CO ., L TO.
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