Sym Euro 100, Service Manual

Page: 137 / 161

15. ELECTRICAL EQUIPMENT
15-2
Maintenance Information
Precautions in Operation
y When remove 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 the motorcycle 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 C.D.I assembly does not require an ignition timing check. In case ignition timing is incorrect,
check C.D.I and AC generator. Verify with an ignition timing light after replacement if necessary.
y The starter motor can be removed after the engine is removed.
Specification
Charging System
Item Specification
Capacity 12V3Ah
Battery
Charging rate 0.4A / 5 hours (standard), 4A / 0.5 hour (fast charging)
Leak current < 1 mA
Charging current 1.2 A / 5000 rpm
Control voltage in charging 14.0 - 15.0 V / 5000 rpm
Control voltage in headlight 12.6 - 13.6 V / 5000 rpm (JET 50/100)
Ignition System
Item Specification
Model
JET 50 series
NGK BR8HSA
(Recommended)
JET 100 series
NGK BR6HSA
(Recommended)
Spark plug
Gap 0.6 - 0.7 mm
Primary coil
0.19 – 0.23
Ω
Ignition coil and resistance
Secondary coil
2.8 – 3.4 K
Ω
Ignition timing “F” mark
17
°
BTDC / 1800 rpm
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