Suzuki RM-Z250 Owner's Service Manual page 308

CAMSHAFT + CYLINDER HEAD
ITEM
Cam height
Camshaft journal oil clearance
Camshaft journal holder I.D.
Camshaft journal O.D.
Camshaft runout
Cam chain pin
Cylinder head distortion
Cylinder head cover distortion
CYLINDER + PISTON + PISTON RING
ITEM
Compression pressure
(Automatic decomp. actuated)
Piston to cylinder clearance
Cylinder bore
Piston diam.
Cylinder distortion
Piston ring free end gap
Piston ring end gap
Piston ring to groove clearance
Piston ring groove width
Piston ring thickness
Piston pin bore
Piston pin O.D.
STANDARD
IN.
EX.
IN. & EX.
(0.0013 – 0.0026)
22.003 – 22.025
IN. & EX.
(0.8663 – 0.8671)
21.959 – 21.980
IN. & EX.
(0.8645 – 0.8654)
13th pin
STANDARD
400 – 800 kPa
(4.0 – 8.0 kgf/cm
0.030 – 0.040
(0.0012 – 0.0016)
77.000 – 77.015
(3.0315 – 3.0321)
76.980 – 76.965
(3.0307 – 3.0301)
Measure at 8.5 mm (0.33 in) from the skirt end.
1st IR Approx. 7.0 (0.28)
1st
1st
1st
(0.0398 – 0.0406)
Oil
(0.0594 – 0.0602)
1st
(0.0382 – 0.0390)
16.002 – 16.008
(0.6300 – 0.6302)
15.995 – 16.000
(0.6297 – 0.6299)
SERVICING INFORMATION
34.86 – 34.91
(1.372 – 1.374)
34.38 – 34.43
(1.354 – 1.356)
0.023 – 0.066
—
—
—
2 , 57 – 114 psi)
—
0.15 – 0.25
(0.006 – 0.010)
—
1.01 – 1.03
1.51 – 1.53
0.97 – 0.99
19-3
Unit: mm (in)
LIMIT
34.56
(1.361)
34.08
(1.342)
0.150
(0.0059)
—
—
0.10
(0.004)
—
0.05
(0.002)
0.05
(0.002)
Unit: mm (in)
LIMIT
—
0.120
(0.0047)
Nicks or
scratches
76.880
(3.0268)
0.05
(0.002)
5.6
(0.22)
0.50
(0.020)
0.180
(0.007)
—
—
—
16.030
(0.6311)
15.980
(0.6291)