V. Maintenance Specification of Engine
Item
Standard
Limit
Piston
Piston size “D”
Measuring point “H” (from bottom line of piston lower portion)
Piston offset
Direction of piston offset
Clearance between piston and cylinder
Outside diameter of piston pin
Inside diameter of pin hole
70.92-70.97mm
4.0mm
0.5mm
Inward
0.04-0.006
15.991-16.000mm
16.002-16.013mm
0.15mm
Driving method of balancing block
gear driving
Connecting rod of crank
Limit value of runout: C1
C2
Width of crank “A”
Small end free play of connecting rod “F”
Big end free play of connecring rod “D”
Big end radial clearance of connecting rod “E”
55.95-56.00mm
0.8-1.0mm
0.35-0.65mm
0.010-0.025mm
0.03mm
0.06mm
2.0mm
Automatic centrifugal clutch
Clutch shoe: quantity
thickness
Clutch messhing revolution
Clutch stalled revolution
Free length of back spring of brake shoe
Clutch:
Action method of clutch
Clutch piece: quantity
thickness
Friction piece: quantity
thickness
Spring of clutch: quantity
free length
3 pieces
2.0mm
1800-2100r/min
3200-3600r/min
32.47mm
Outside pushing type
4 pieces
1.45-1.75mm
5 pieces
2.94-3.06mm
4
35.1mm
1.5mm
2.8mm
32.9mm
Shifting mechanism
shifting method
beding limit of fork guide
shift gear cam drunk and
fork
0.8mm
Transmission device
offset limit of spindle
offset limit of transmission output shaft
0.08mm
0.08mm
20
Summary of Contents for WD250U
Page 1: ...WD250U Service Manual For any questions please contact Baja Motorsports at 888 863 2252 ...
Page 23: ... II Wiring diagram 1 23 ...
Page 24: ... III Wiring diagram 2 24 ...
Page 25: ... IV Wiring diagram 1 25 ...
Page 31: ...Section 8 Lubrication I Lubrication oil way 31 ...
Page 120: ...119 ...