Will work with Chinese / Taiwanese 139QMA, QMB, GY6 engines, plus many more. 6 Pin CDI Ignition Unit with Adjustable Ignition Timing Advance. (DC Fired). The maximum timing advance can be retarded or advanced allowing you to tune the CDI.
This product would be ideal for individuals who require a highly adjustable CDI ignition unit for their adjustable firing ranges, covering quad motors from 50cc to 400cc.
