Cylinder/Piston - Service Information; Cylinder/Piston Specifications; Cylinder/Piston - Tools; Cylinder/Piston Troubleshooting - Honda 1985 CBX750F Workshop Manual

--------------------------------------------
~HONDA
~
CBX750F
7. CYLINDER/PISTON
SERVICE INFORMATION
7-1 PISTON REMOVAL
7-3
TROUBLESHOOTING
7-1
PISTON INSTALLATION
7-7
CYLINDER REMOVAL
7-2
CYLINDER INSTALLATION
7-7
SERVICE INFORMATION
GENERAL
• All cylinder/piston maintenance and inspection can be accomplished without removing the engine from the frame .
SPECI F ICATIONS
ITEM
STANDARD
SERVICE LIMIT
Cylinder 1.0.
67.000-67.010
mm
(2.6378-2.6382
in) 67.10
mm
(2.642
in)
Warpage
-
0.10
mm
(0.004
in)
Piston,
Piston ring-to-ring TOP
0.015-0.045 mm (0.0006-0.0018 in)
0.06 mm (0.002 in)
piston rings
and piston
pin
groove clearance
Ring end gap
SECOND
TOP
0.015-0.045
mm
(0.0006-0.0018
in)
0.15-0.30
mm
(0.006-0.012
in)
0.06
mm
(0.002
in)
0.5
mm
(0.02
in)
SECOND
0.15-0.30
mm
(0.006-0.012
in) 0.5
mm
(0.02
in)
..
-
-
OIL
0.30-0.90
mm
(0.012-0.035
in)
. (SIDE
RAt L). _ ..
-
-­
._ -­ -
. _- -­ -
- -­
1.1
mm
(0.04
in)
Piston 0.0.
66.960-66.990
mm
(2.6362-2.6374
in)
66.90
mm
(2.634
in)
Piston pin bore
17.002-17.008 mm (0.6694-0.6696 in) 17.05
mm
(0.671
in)
Connecting rod small end 1.0.
17.016-17.034
mm
(0.6699-0.6706
in) 17.07 mm (0.672 in)
Piston pin 0.0.
16.994-17.000
mm
(0.6691-0.6693
in) 16.98
mm
(0.669
in)
Piston-to-piston pin clearance
0.002-0.014
mm
(0.0001-0.0006
in) 0.04
mm
(0.002
in)
Cylinder-to-piston clearance 0.010-0.050 mm (0.0004-0.0020 in) 0.10
mm
(0.004
in)
Piston pin-to-eonnecting rod
clearance
0.016-0.040
mm
(0.0006-0.0016
in) 0.06
mm
(0.002
in)
TOOLS
Special
Piston base (2 required)
07958-3000000
Piston ring compressor (2 required)
07954-2830000
TROUBLESHOOTING
Compression low Overheating
1.
Worn cylinder or piston rings
1.
Excessive carbon build-up on the piston or com­
2. Leaking valve seats bustion chamber wall.
2. Incorrect spark plug.
Excessive smoke
1. Worn cylinder or piston
Knocking or abnormal noise
2. Improper installation of piston rings
1. Worn piston and cylinder
3. Scored or scratched piston or cylinder wall
2. Excessive carbon build -up
3. Low octane fuel.
7-1