Suzuki RM85L - Service Data: Engine, Transmission, Carburetor Specs

18-2 SERVICING INFORMATION
SERVICE DATA
CYLINDER + PISTON + PISTON RING Unit: mm (in)
CONROD + CRANKSHAFT Unit: mm (in)
CLUTCH Unit: mm (in)
RADIATOR
ITEM STANDARD LIMIT
Piston to cylinder clearance 0.040 – 0.050
(0.0016 – 0.0020)
0.120
(0.0047)
Cylinder bore 48.000 – 48.015
(1.8898 – 1.8904)
Measure 15 (0.59) from the top surface.
Nicks or
scratches
Piston diam. 47.955 – 47.970
(1.8880 – 1.8886)
Measure 16 (0.63) from the skirt end.
47.880
(1.8850)
Cylinder distortion
—
0.05
(0.002)
Cylinder head distortion
—
0.05
(0.002)
Piston ring free end gap
N Approx. 4.0 (0.16)
3.2
(0.13)
Piston ring to groove clearance 0.020 – 0.060
(0.0008 – 0.0024)
—
Piston ring end gap 0.20 – 0.40
(0.008 – 0.0016)
0.80
(0.031)
Piston pin bore 14.002 – 14.008
(0.5513 – 0.5515)
14.030
(0.5524)
Piston pin O.D. 13.995 – 14.000
(0.5510 – 0.5512)
13.980
(0.5504)
Reed valve clearance
—
0.2
(0.008)
ITEM STANDARD LIMIT
Conrod small end I.D. 18.003 – 18.011
(0.7088 – 0.7091)
18.040
(0.7102)
Crank web to web width 44.9 – 45.1
(1.767 – 1.775)
—
Crankshaft runout
—
0.05
(0.002)
ITEM STANDARD LIMIT
Clutch lever play 10 – 15
(0.4 – 0.6)
—
Drive plate thickness 2.7 – 2.9
(0.106 – 0.114)
2.4
(0.094)
Driven plate distortion
—
0.10
(0.004)
Clutch spring free length
41.5
39.4
(1.55)
ITEM STANDARD LIMIT
Radiator cap valve opening
pressure
110 kPa (1.1 kgf/cm
2
, 16 psi) —