65
2.3 Ignition system check
* Note
• When there is no spark, check whether there is loose wiring
or poor contact, and make sure all voltage values are normal.
• There are kinds of multimeters with different impedances
and different test values.
Connect a high-pressure shunt or an ammeter with
an input impedance above 10M
Ω
10CV to the multimeter.
2.3.1 Primary voltage of the ignition coil
If you replace the original spark plug with a better one,
（万用表：
multimeter
）
make ground connection with the engine.
* Note
Make sure all wiring is correct before test.
Cylinder compression pressure normally refers
to the test value when the spark plug is installed
on the cylinder head.
Connect the lead of the ignition coil and also the shunt
between the primary coil terminal (black/white) and the
GND.
Press the startup motor or step the actuating lever to
measure the maximum primary voltage of the ignition coil.
Minimum voltage: above 95V
（万用表：
multimeter
点火线圈：
ignition coil
）
* Note
Never touch any metal part of the test rod with
your finger to avoid electric shock.
2.3.2 Charging coil
* Note
Install the spark plug on the cylinder head and
carry out measurement when the compression
pressure is normal.
Remove 4P and 2P connectors of CDI group. Connect the
peak-voltage shunt between the charging coil (black/red) with
2P connector and the 4P connector (black terminal).
Press the startup motor or step the actuating lever to measure
the maximum voltage of the charging coil.
万用表
万
用
表
