KYMCO XCITING S 400 Manual page 316

9.Electrical Systems
Secondary Without Plug Cap
Check the secondary resistance between the ignition coil terminal and
the spark plug wire without the cap. Touch the negative meter lead to
the terminal and the positive meter lead to the spark plug wire as shown.
Secondary Resistance Without Plug Cap
XCITING S 400
9-16
7.2 –
10.8kΩ