Specifications
Routine maintenance
13
2 Clean the centrifugal oil filter
Remove the crankcase right-hand cover, as described in
Chapter 1.10, then remove its three retaining screws and
withdraw the filter cover; note the gasket. Carefully clean out
the deposits which will have accumulated around the inner
edge of the unit, noting that these may have become quite
compacted and may need scraping off. Wash each part out
using a lint-free rag soaked in solvent, then dry them off before
refitting the cover. Refit the crankcase cover and refill the
engine to the correct level with the specified oil.
3 Change the front fork oil
Place the machine on the centre stand then remove the fork
top bolts. Unscrew the drain plug from each fork lower leg and
allow the oil to drain into a suitable container. This is ac-
complished most easily if the legs are attended to in turn. Take
care not to spill any oil onto the brake or tyre. The forks may be
pumped up and down to expel any remaining oil. Refit and
tighten the drain plugs to a torque setting of 0.3 - 0.6 kgf
m
(2
—
4
Ibf
ft). Refill each fork leg with the specified oil. Refit and
tighten the fork top bolts to a torque setting of 3.0 - 4.0 kgf
m
(22 - 29
Ibf
ft).
Quick glance maintenance data
Oil capacity
Engine/gearbox unit approx 1.0 litre (1.76 Imp pint)
Front forks — at oil change
CG125 120 - 130 cc (4.22 - 4.58
Imp fl
oz)
CG125
K1, B, C, E
130
- 140 cc (4.58 - 4.93
Imp
fl oz)
Valve clearances - inlet and exhaust, cold engine 0.08 mm (0.003 in)
Contact breaker gap
Nominal 0.35 mm (0.014 in)
Tolerance
- for
ignition timing 0.30 - 0.40 mm
(0.012
-
0.016
in)
Spark plug gap 0.6 - 0.7 mm (0.024 - 0.028 in)
Tyre pressures - solo, tyres cold
Front 25 psi (1.75 kg/cm
2
)
Rear 28 psi (2.00 kg/cm
2
)
Recommended lubricants
Petrol Either leaded
three-or
four-star (minimum octane rating
of 91) or unleaded premium
Engine/gearbox unit
Good quality SAE10W/40 engine
oil,
API class SE or
SF
Front forks Automatic transmission fluid (ATF) or equivalent fork oil
Air cleaner SAE80 or 90 gear oil - SAE30 engine oil if gear oil not
available
Final drive chain Commercial chain lubricant
Brake camshafts, wheel bearings and speedometer drive High melting-point grease
All other greasing points General purpose grease
Control cables Engine oil or light machine oil