DR650SEK1 (’01-MODEL) 10-4
ITEM STANDARD LIMIT
Piston ring to groove clearance
1st ———
0.180
(0.0071)
2nd ———
0.150
(0.0059)
Piston ring groove width
1st
1.230 – 1.250
(0.048 – 0.049)
———
2nd
1.210 – 1.230
(0.047 – 0.048)
———
Oil
2.810 – 2.830
(0.110 – 0.111)
———
Piston ring thickness
1st
1.170 – 1.190
(0.0461 – 0.0469)
———
2nd
1.150 – 1.170
(0.0453 – 0.0461)
———
Piston pin bore 23.002 – 23.008 23.030
(0.9056 – 0.9058) (0.9067)
Piston pin O.D. 22.996 – 23.000 22.980
(0.9054 – 0.9055) (0.9047)
CONROD + CRANKSHAFT Unit: mm (in)
ITEM STANDARD LIMIT
Conrod small end I.D. 23.006 – 23.014 23.040
(0.9057 – 0.9061) (0.9071)
Conrod deflection
———
3.0
(0.12)
Conrod big end side clearance 0.10 – 0.65 1.00
(0.004 – 0.026) (0.039)
Conrod big end width 24.95 – 25.00
(0.982 – 0.984)
———
Crankshaft runout
———
0.05
(0.002)
Crank web to web width 71.0 ± 0.1
(2.795 ± 0.004)
———
OIL PUMP
ITEM STANDARD LIMIT
Oil pump reduction ratio 1.633 (61/28 × 30/20 × 15/30) ———
Oil pressure (at 60°C,140°F) Above 30 kPa (0.3 kg/cm
2
, 4.3 psi)
Below 70 kPa (0.7 kg/cm
2
, 10.0 psi) ———
at 3 000 r/min.