Suzuki RM-Z450 - Page 343

SERVICING INFORMATION 20-3
CAMSHAFT + CYLINDER HEAD
Unit: mm (in)
CYLINDER + PISTON + PISTON RING
Unit: mm (in)
ITEM STANDARD LIMIT
Cam height
IN.
35.53 – 35.58
(1.399 – 1.401)
35.23
(1.387)
EX.
34.33 – 34.38
(1.352 – 1.354)
34.03
(1.340)
Camshaft journal oil clearance
IN. & EX.
0.032 – 0.066
(0.001 – 0.002)
0.150
(0.0059)
Camshaft journal holder I.D.
IN. & EX.
22.012 – 22.025
(0.8667 – 0.8671)
—
Camshaft journal O.D.
IN. & EX.
21.959 – 21.980
(0.8645 – 0.8654)
—
Camshaft runout
—
0.10
(0.004)
Cam chain pin 14th pin —
Cylinder head distortion
—
0.05
(0.002)
ITEM STANDARD LIMIT
Compression pressure
(Automatic decomp. actuated)
400 kPa (4.0 kgf/cm
2
, 57 psi) and more —
Piston to cylinder clearance 0.035 – 0.045
(0.0014 – 0.0018)
0.120
(0.0047)
Cylinder bore 96.000 – 96.015
(3.7795 – 3.7801)
Nicks or
scratches
Piston diam. 95.960 – 95.975
(3.7779 – 3.7785)
Measure at 15 mm (0.6 in) from the skirt end.
95.880
(3.7748)
Cylinder distortion
—
0.05
(0.002)
Piston ring free end gap
1st Approx. 8.6 (0.34)
6.9
(0.27)
Piston ring end gap
1st
0.08 – 0.20
(0.003 – 0.008)
0.50
(0.020)
Piston ring to groove clearance
1st —
0.180
(0.007)
Piston ring groove width
1st
0.78 – 0.80
(0.0307 – 0.0315)
—
1.30 – 1.32
(0.0512 – 0.0520)
—
Oil
2.01 – 2.03
(0.0791 – 0.0799)
—
Piston ring thickness
1st
0.71 – 0.76
(0.0279 – 0.0299)
—
1.08 – 1.10
(0.0425 – 0.0433)
—
Piston pin bore 19.002 – 19.008
(0.7425 – 0.7433)
19.030
(0.7492)
Piston pin O.D. 18.995 – 19.000
(0.7478 – 0.7480)
18.980
(0.7472)