Benelli ZAFFERAN 250 - 2. Ignition System; 2.1 Preparing documents; 2.2 Failure diagnosis; 2.3 Ignition system check

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2. Ignition System
Preparing documents--------------2.1 RELATED PARTS Group
----------------2.4
Failure diagnosis ------------------2.2 Ignition coil --------------------------------- 2.5
Ignition system check-------------2.3 Trigger ----------------------------- 2.6
2.1 Preparing documents
Note of Work:
1. Check the ignition system following the sequence listed in the table of failure diagnosis.
2. This ignition system is an electronically and automatically angling device. It is solidified in the
RELATED PARTS group and you don’t have to adjust the ignition time.
3. Check the ignition system following the sequence listed in the table of failure diagnosis.
4. Do not make RELATED PARTS of the ignition system fall down or hang down or hammer it with
strong force (primary causes for failure). Pay special attention during disassembly.
5. Failure of the ignition system is mostly caused by poor contact of the socket. Check whether each
connector is in good condition.
6. Check whether the heat value used for the spark plug is proper. If not, the engine may work
abnormally or the spark plug may be burnt.
7. Check in this chapter is based on the maximum voltage. It also refers to check on the
impedance of the ignition coil.
8. Check the main switch according to the conduction table.
9. Remove the magneto and the stator according to instructions.
Preparing principles
Item
Standard value
Spark plug
recommend
ed
Standard
CR8E (NGK)
Spark plug
gap
0.6-0.7mm
Ignition coil
impedance
（68F）
Primary coil
0.4Ω±10％
Secondary coil
With plug cap
8-11KΩ
Without plug
cap
4.5-5.5KΩ
Impedance of trigger（68F）
100-200Ω
Measure the maximum primary voltage of
the ignition coil
95-400V
Trigger
Voltage
Over 1.7V
Tools
Attachments to the Maximum Voltage Table
Multimeter