Suzuki LT-Z90 - Page 251

SERVICING INFORMATION 7-29
CAMSHAFT + CYLINDER HEAD
Unit: mm (in)
CYLINDER + PISTON + PISTON RING
Unit: mm (in)
ITEM STANDARD LIMIT
Cam height
IN.
27.92 – 27.97
(1.099 – 1.101)
27.62
(1.087)
EX.
27.80 – 27.85
(1.094 – 1.096)
27.50
(1.082)
Rocker arm I.D.
IN. & EX.
10.003 – 10.018
(0.393 – 0.394)
----
Rocker arm shaft O.D.
IN. & EX.
9.981 – 9.990
(0.3929 – 0.3933)
----
Cylinder head distortion
----
0.05
(0.002)
ITEM STANDARD LIMIT
Compression pressure
1 500 kPa
(15 kgf/cm², 213 psi)
1 300 kPa
(13 kgf/cm²,
185 psi)
Piston-to-cylinder clearance 0.020 – 0.030
(0.0008 – 0.0012)
0.120
(0.0047)
Cylinder bore 45.500 – 45.515
(1.7913 – 1.7919)
Nicks or
Scratches
Piston diam. 45.490 – 45.475
(1.7909 – 1.7903)
Measure at 10 mm (0.4 in) from the skirt end.
45.380
(1.7860)
Cylinder distortion
----
0.05
(0.002)
Piston ring free end gap 1st Approx. 5.5 (0.22) ----
2nd Approx. 5.3 (0.21) ----
Piston ring end gap
1st
0.10 – 0.25
(0.003 – 0.009)
0.80
(0.031)
2nd
0.10 – 0.25
(0.003 – 0.009)
0.80
(0.031)
Piston ring to groove clearance
1st ----
0.180
(0.0071)
2nd ----
0.150
(0.0059)
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