Honda NC700 2012 Service Manual page 526

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SERVICE INFORMATION
GENERAL
This motorcycle provides cracking connecting rods. Be sure to install each part in its original position, as noted during removal. Do
not reuse the improperly installed connecting rod and bearing cap, because their mating surfaces are damaged.
• The crankcase must be separated to service the following:
– Crankshaft (page 15-5)
– Piston/cylinder (page 15-14)
• Mark and store the connecting rods, bearing caps and bearing inserts to be sure of their correct locations for reassembly.
• The crankpin and main journal bearing inserts are select fit and are identified by color codes. Select replacement bearings from
the code tables. After selecting new bearings, recheck the oil clearance with a plastigauge. Incorrect oil clearance can cause
major engine damage.
• Clean the oil passages in the upper crankcase with compressed air before installing the pistons.
SPECIFICATIONS
Crankshaft Connecting rod side clearance
Runout
Main journal bearing oil clearance
Cylinder I.D.
Out-of-round
Taper
Warpage
Piston, piston Piston O.D. at 13 mm (0.5 in) from
rings bottom
Piston pin bore I.D.
Piston pin O.D.
Piston-to-piston pin clearance
Piston ring end
gap
Piston ring-to-ring
groove clearance
Cylinder-to-piston clearance
Connecting rod small end I.D.
Crankpin bearing oil clearance
TORQUE VALUES
ITEM
Crankpin bearing cap bolt
Crankcase main journal bolt
(retightening)
ITEM
Right side
Left side
Top
Second
Oil (side rail)
Top
Second
THREAD
Q'TY
DIA. (mm)
4 6
6 9
CRANKSHAFT/PISTON/CYLINDER
STANDARD
0.15 – 0.35 (0.006 – 0.014)
–
–
0.019 – 0.037 (0.0007 – 0.0015)
73.000 – 73.015 (2.8740 – 2.8746)
–
–
–
72.976 – 72.990 (2.8731 – 2.8736)
18.010 – 18.013 (0.7091 – 0.7092)
17.996 – 18.000 (0.7085 – 0.7087)
0.010 – 0.017 (0.0004 – 0.0007)
0.15 – 0.30 (0.006 – 0.012)
0.30 – 0.42 (0.012 – 0.017)
0.20 – 0.70 (0.008 – 0.028)
0.035 – 0.080 (0.0014 – 0.0032)
0.030 – 0.055 (0.0012 – 0.0022)
0.010 – 0.039 (0.0004 – 0.0015)
17.964 – 17.977 (0.7072 – 0.7078)
0.026 – 0.044 (0.0010 – 0.0017)
TORQUE
N·m (kgf·m, lbf·ft)
10 (1.0, 7) + 90° See page 15-7
Replace with a new one.
Apply engine oil to the threads and
seating surface.
20 (2.0, 15) + 120° See page 15-9
Apply engine oil to the threads and
seating surface.
Unit: mm (in)
SERVICE LIMIT
0.45 (0.018)
0.03 (0.001)
0.03 (0.001)
0.05 (0.002)
73.07 (2.877)
0.10 (0.004)
0.10 (0.004)
0.10 (0.004)
72.970 (2.8728)
18.023 (0.7096)
17.988 (0.7082)
0.035 (0.0014)
0.6 (0.02)
0.6 (0.02)
0.8 (0.03)
0.15 (0.006)
0.13 (0.005)
0.05 (0.002)
17.985 (0.7081)
0.05 (0.002)
REMARKS
15-3