Suzuki K6A-YH6 Technical/Repair Manual page 94

REPAIR
Piston, Piston Pin, and Piston Rings
1. Inspect piston, piston pin, and piston rings for cracks,
wear, or damage. Replace as needed.
2. Measure piston OD. Compare to specification and
cylinder bore ID. Replace as needed.
Piston OD: 2.675—2.676 in. (67.970—67.990 mm)
Cylinder Bore ID: 2.6771—2.6779 in.
(68.000—68.020 mm)
3. Measure piston pin OD. Compare measurement to
specification and connecting rod small end ID.
Replace as needed.
Piston Pin OD: 0.7084—0.7086 in.
(17.995—18.000 mm)
Connecting Rod Small End ID: 0.7087—0.7090 in.
(18.003—18.011 mm)
4. Measure piston rings end gap. Compare to
specifications. Replace as needed.
Top Compression Ring End Gap: 0.0047—0.0106 in.
(0.12—0.27 mm)
Top Compression Ring End Gap Limit: 0.027 in.
(0.7 mm)
Second Compression Ring End Gap:
0.0137—0.0196 in. (0.35—0.50 mm)
Second Compression Ring End Gap Limit: 0.039 in.
(1.0 mm)
Oil Control Ring End Gap: 0.0039—0.0157 in.
(0.10—0.40 mm)
Oil Control Ring End Gap Limit: 0.047 in. (1.2 mm)
7
7-40
Assembly
NOTICE
Prevent engine failure. Always clean parts of dirt
and debris. Coat all bearings and contact
surfaces with clean oil.
See Figures 7-93 through 7-97.
Required Tools
Piston Ring Expander, Piston Ring Compressor
1
3
4
Figure 7-93
NOTE
Be sure to align bearing tangs (4) with recessed grooves
in the connecting rod and cap.
1. Align bearing tangs (4) with recessed grooves in
connecting rod (2) and cap (1) and install bearings
(3).
2
4 3
TN0754