Specifications

108 Chapter 7 The 1985 on models
Cylinder bore
Gasket surface maximum warpage 0.100 mm (0.0039 in)
Piston to cylinder clearance 0.010 - 0.040 mm (0.0004 - 0.0016 in)
Wear limit 0.100 mm (0.0039 in)
Cylinder head
Gasket surface maximum warpage 0.100 mm (0.0039 in)
Crankshaft
Connecting rod small-end bore ID 15.010 - 15.028 mm (0.5909 - 0.5917 in)
Wear limit 15.060 mm (0.5929 in)
Big-end bearing maximum radial play 0.050 mm (0.0020 in)
Crankshaft maximum runout 0.050 mm (0.002O in)
Gearbox
Reduction ratios:
Primary drive 3.333 : 1 (21/70T)
1st 2.769 : 1 (13/36T)
2nd 1.882 : 1 (17/32T)
3rd 1.400 : 1 (20/28T)
4th 1.130 : 1 (23/26T)
5th 0.960 : 1 (25/24 T)
Final drive 2.929 : 1 (14/41 T)
Selector fork claw end minimum thickness 4.50 mm (0.1772 in)
Selector fork shaft diameter 1 1.976 - 1 1.994 mm (0.471 5 - 0.4722 in)
Torque wrench settings
Component kgf m Ibf ft
Cylinder head cover bolts 0.8 -1.2 6-9
Rocker assembly mounting bolts:
CG125(BR)-E/F and J models 1.5 - 2.0 11 - 14.5
CG125(BR)-K model 2.1 15 .
Special bolt into cam follower pivot:
CG125(BR)-E/F and J models 1.5 - 2.0 11 - 14.5
CG125(BR)-K model 2.1 15
Cylinder head sleeve bolt:
CG125(BR)-E/F and J models 2.3 - 2.8 16.5 - 20
CG125(BR)-K model 3.3 23
Crankcase and crankcase cover screws 0.8-1.2 6-9
Selector drum camplate bolt 1.0 - 1.6 7 - 11.5
Selector drum stopper arm bolt 0.8-1.2 6-9
Generator stator screws 0.8-1.2 6-9
Gearbox sprocket mounting bolts 1.0-1.6 7-11.5
Endfloat plug mounting bolt 1.0 - 1.6 7 - 11.5
Engine oil drain plug (where fitted) 2.0 - 3.0 14.5 - 22
Oil filter gauze cap:
CG125(BR)-E/F and J models 1.0 - 3.5 7 - 25
CG125(BR)-K model 1.5 11
Engine mounting bolts CG125(BR)-K model 3.5 25
Footrest bar mounting bolts:
CG125(BR)-E/F and J models 1.8 - 2.5 13 - 18
CG125(BR)-K model 2.7 20
Specifications relating to Chapter 2
Fuel tank capacity
Overall 12 litres (2.6 Imp gal)
Including reserve of 2.6 litres (0.6 Imp gal)
Carburettor CG125(BR)-E/F, J CG125(BR)-K
ID number PD47C-A or D-A PD47F-A
Main jet 90 (95*) 95
Pilot (slow) jet 38 35
Needle jet E2052J (E2352H*) Not available
Needle jet clip position - grooves from top 4th (2nd*) Not available
Pilot screw - turns out from fully closed 1| 1J
Float height 14.0 mm (0.55 in) 14.0 mm (0.55 in)
Idle speed 1400 ± 100 rpm 1400 ± 100 rpm
See Section 13 for details of modified specifications denoted by the asterisk
Oil pump
Outer rotor to pump body clearance 0.30 - 0.36 mm (0.0118 - 0.0142 in)
Wear limit 0.40 mm (0.0157 in)