Suzuki DR 125, Service Manual

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9-4 DR-Z125/LK6 (’06-MODEL) AND DR-Z125/LK7 (’07-MODEL)
CA CYLINDER HEAD
Unit: mm (in)
CY PISTON RING
Unit: mm (in)
ITEM STANDARD LIMIT
Cam height
IN. & EX.
33.13 – 33.17
(1.304 – 1.306)
32.83
(1.29)
Camshaft journal oil clearance
IN. & EX.
0.032 – 0.066
(0.0013 – 0.0026)
0.150
(0.0059)
Camshaft journal holder I.D.
IN. & EX.
22.012 – 22.025
(0.8666 – 0.8671)
—
Camshaft journal O.D.
IN. & EX.
21.959 – 21.980
(0.8645 – 0.8654)
—
Camshaft runout
IN. & EX. —
0.10
(0.004)
Rocker arm I.D.
IN. & EX.
12.000 – 12.018
(0.4724 – 0.4731)
—
Rocker arm shaft O.D.
IN. & EX.
11.977 – 11.995
(0.4715 – 0.4722)
—
Cylinder head distortion
—
0.05
(0.002)
Cylinder head cover distortion
—
0.05
(0.002)
ITEM STANDARD LIMIT
Compression pressure 1 200 – 1 600 kPa
(12 – 16 kgf/cm 2 , 171 – 228 psi)
1 000 kPa
(10 kgf/cm 2 , 142 psi)
Piston to cylinder clearance 0.020 – 0.030
(0.0008 – 0.0012)
0.120
(0.0047)
Cylinder bore 57.000 – 57.015
(2.2440 – 2.2447)
57.110
(2.2484)
Piston diam. 56.975 – 56.990
(2.2431 – 2.2437)
Measure at 12 mm (0.5 in) from the skirt end.
56.880
(2.2394)
Cylinder distortion
—
0.05
(0.002)
Piston ring free end gap
1st R Approx. 7.0 (0.28)
5.6
(0.22)
2nd R Approx. 8.5 (0.33)
6.8
(0.27)
Piston ring end gap
1st
0.10 – 0.25
(0.004 – 0.010)
0.5
(0.02)
2nd
0.10 – 0.25
(0.004 – 0.010)
0.5
(0.02)
Piston ring to groove clearance
1st —
0.18
(0.007)
2nd —
0.15
(0.006)
Piston ring groove width
1st
1.21 – 1.23
(0.047 – 0.048)
—
2nd
1.21 – 1.23
(0.047 – 0.048)
—
Oil
2.51 – 2.53
(0.099 – 0.100)
—