Service Data - Suzuki RM250 Owner's Service Manual

18-2 SERVICING INFORMATION

SERVICE DATA

CYLINDER + PISTON + PISTON RING
ITEM
Piston to cylinder clearance
Cylinder bore
Piston diam.
Cylinder distortion
Cylinder head distortion
Piston ring free end
gap
Piston ring end gap
Piston ring to groove
clearance
Piston pin bore
Piston pin O.D.
CONROD + CRANKSHAFT
ITEM
Conrod small end I.D.
Conrod deflection
Conrod big end side clearance
Crank web to web width
Crankshaft runout
CLUTCH
ITEM
Clutch lever play
Drive plate thickness
Drive plate claw width
Driven plate distortion
Clutch spring free length
Measure 20 mm (0.79 in) from the top surface.
Measure 19 mm (0.75 in) from the skirt end.
1st & 2nd R
1st & 2nd
1st & 2nd
STD/SPEC.
0.045 – 0.055 mm
(0.0018 – 0.0022 in)
66.400 – 66.415 mm
(2.6142 – 2.6148 in)
66.350 – 66.365 mm
(2.6122 – 2.6128 in)
—
—
Approx. 8.2 mm (0.32 in)
0.30 – 0.45 mm
(0.012 – 0.018 in)
0.02 – 0.06 mm
(0.0008 – 0.0024 in)
18.002 – 18.008 mm
(0.7087 – 0.7090 in)
17.995 – 18.000 mm
(0.7085 – 0.7087 in)
STD/SPEC.
23.003 – 23.011 mm
(0.9056 – 0.9059 in)
—
0.1 – 0.8 mm
(0.0039 – 0.0315 in)
59.9 – 60.1 mm
(2.358 – 2.366 in)
—
STD/SPEC.
10 – 15 mm
(0.4 – 0.6 in)
3.07 – 3.23 mm
(0.121 – 0.127 in)
13.85 – 13.95 mm
(0.545 – 0.549 in)
—
51.94 mm
(2.04 in)
LIMIT
0.120 mm
(0.0047 in)
Nicks or
scratches
66.280 mm
(2.6100 in)
0.05 mm
(0.002 in)
0.05 mm
(0.002 in)
6.6 mm
(0.26 in)
0.80 mm
(0.031 in)
—
18.030 mm
(0.7098 in)
17.980 mm
(0.7079 in)
LIMIT
23.040 mm
(0.9071 in)
3.0 mm
(0.12 in)
1.0 mm
(0.04 in)
—
0.05 mm
(0.002 in)
LIMIT
—
2.77 mm
(0.109 in)
13.35 mm
(0.514 in)
0.10 mm
(0.004 in)
49.4 mm
(1.94 in)