Suzuki DR650SE - Cylinder Head; Piston Ring

7-29 SERVICING INFORMATION
CAMSHAFT + CYLINDER HEAD
Unit: mm (in)
ITEM STANDARD
LIMIT
Cam height
IN.
33.710-33.750
33.410
(1.3272-1.3287) (1.3154)
EX.
33.700-33.740
33.400
( 1.3268-1.3283) (1.3150)
Camshaft journal oil clearance Right & 0.032-0.066
0.150
Center (0.0013-0.0026) (0.0059)
Left
0.028-0.059 0.150
(0.0011-0.0023)
(0.0059)
Camshaft journal holder 1.0. Right & 22.012-22.025
--
Center (0.8666-0.8671 )
Left
17.512-17.525
(0.6894-0.6900)
--
Camshaft journal 0.0. Right & 21.959-21.980
--
Center
(0.8645-0.8654)
Left
17.466-17.484
(0.6877 -0.6883)
--
Camshaft runout 0.10
--
(0.004)
Rocker arm 1.0.
IN. & EX.
12.000-12.018
(0.4724-0.4 731)
--
Rocker arm shaft 0.0.
IN. & EX.
11.973-11.984
(0.4714-0.4718)
--
Cylinder head distortion 0.05
--
(0.002)
Cylinder head cover distortion
--
0.05
(0.002)
CYLINDER + PISTON + PISTON RING
Unit: mm (in)
ITEM
STANDARD
LIMIT
Piston to cylinder clearance 0.020-0.030 0.120
(0.0008-0.0012)
(0.0047)
Cylinder bore 100.000-100.015 Nicks or
(3.937 -3.9376)
Scratches
Piston diam.
99.975-99.990
99.880
(3.9360-3.9366)
(3.9323)
Measure at 21 mm (0.8 in) from the skirt end.
Cylinder distortion
0.05
--
(0.002)
Piston ring free end gap
1
st R Approx.
13.5 10.8
(0.53)
(0.43)
2nd R Approx.
11.4 9.1
(0.45) (0.36)
Piston ring end gap
1
st
0.30-0.45
0.50
(0.012-0.018) (0.020)
2nd
0.45-0.60 1.00
(0.018-0.024) (0.039)
Compression pressure
850 kPa
(Automatic decomp. actuated)
Approx.
(8.5 k
g
/cm
2
)
--
120 psi