17. Electrical System
17-2
Precautions in Operation
y When removing the battery, the disconnection sequence of cable terminals shall be strictly observed.
(First disconnect the negative cable terminal, next, the positive cable terminal.)
y The model of the spark plug and the tightening torque.
y The ignition timing.
y Adjustment of headlight.
y Removal and installation of AC generator.
y The maintenance-free battery requires no inspection of electrolyte level and refilling of distilled water.
y To recharge the battery, remove the battery from rack without removing ventilation caps.
y Unless in emergency, never rapid-charge the battery.
y The voltage must be checked with the voltmeter while charging the battery.
y As ECU assembly does not require an ignition timing check. In case ignition timing is incorrect, check
ECU and AC generator. Verify with an ignition timing light after replacement if necessary.
Specification
Charging system
Description Specification
Capacity 12V10Ah
Battery
Charging rate 1.2A / 5~10hr (standard) 5A / 1hr (fast charging)
Leak current Below 10mA
Charging current 1.2A / 1500 rpm
Control voltage in charging 14.5+0.5 V / 2,000 rpm
Ignition system
Description Specification
Model NGK CR8E (Recommended)
Spark plug
Gap 0.6~0.7 mm
Primary winding 2.8Ω±15%
Without cap:9 KΩ± 20%
Ignition coil and
resistance
Secondary winding
With cap:14.1 KΩ± 20%
Crankshaft position sensor resistance (20℃)
80~160 Ω
At idle speed BTDC 10° / 1650 rpm
Ignition timing advance
Full advanced BTDC 30°
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