spark plug

[The_Aleman]

The CDI (or "coil") is behind the plastic fan cover, bolted to the engine. Those 2 wires are definitely kill switch.

Here's a diagram of the assembly, just FYI:
https://www.hondapartsnation.com/oemparts/a/hen/509471aef8700230ac8cb68c/flywheel-ignition-coil