Service Data - Suzuki UY125 Service Manual

SERVICE DATA

VALVE + GUIDE
ITEM
Valve diam.
Valve clearance (when cold)
Valve guide to valve stem
clearance
Valve guide I.D.
Valve stem O.D.
Valve stem deflection
Valve stem runout
Valve head thickness
Valve stem end length
Valve seat width
Valve head radial runout
Valve spring free length
Valve spring tension
CAMSHAFT + CYLINDER HEAD
ITEM
Cam height
Rocker arm I.D.
Rocker arm shaft O.D.
Cylinder head distortion
CYLINDER + PISTON + PISTON RING
ITEM
Compression pressure
Piston to cylinder clearance
Cylinder bore
Piston diam.
Cylinder distortion
Piston ring end gap
Piston ring to groove clearance
STANDARD
IN.
EX.
IN.
EX.
IN. 0.010 – 0.037
EX. 0.030 – 0.057
IN. & EX. 5.000 – 5.012
IN. 4.975 – 4.990
EX. 4.955 – 4.970
IN. & EX.
IN. & EX.
IN. & EX.
IN. & EX.
IN.
EX.
IN. & EX.
IN. & EX.
118 N (12.0 kgf)
IN. & EX.
at length 26.8 mm
STANDARD
IN.
EX.
IN. & EX.
IN. & EX.
—
STANDARD
750 – 1 200 kPa (7.5 – 12 kgf/cm²)
0.020 – 0.030
53.500 – 53.515
53.475 – 53.490
Measure at 10 mm from the skirt end.
—
1st
2nd R
1st
2nd
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SERVICING INFORMATION
25.0
22.0
0.04 – 0.07
0.10 – 0.15
—
—
—
—
0.90 – 1.10
0.92 – 1.12
—
—
27.92 – 28.02
27.77 – 27.87
10.003 – 10.018
9.981 – 9.990
0.05 – 0.15
0.05 – 0.15
—
—
7-39
Unit: mm
LIMIT
—
—
—
—
—
—
—
—
—
0.35
0.05
0.5
2.2
—
—
0.03
32.9
—
Unit: mm
LIMIT
27.62
27.47
—
—
0.05
Unit: mm
LIMIT
650 kPa
(6.5 kgf/cm²)
0.120
53.610
Nicks or
Scratches
53.380
0.05
0.50
0.50
0.180
0.150