Description
Our CDi units are hand built by technicians who are passionate about ensuring your motorcycle performs as well, if not better than when it was new.
Replacement CDi unit replaces P/N 30400-428-003 for Honda:
XL250S 1978-81
XL500S 1979-82
XR250 1979-80 USA models
Please look carefully at the connectors and select the right unit for your bike. This version comes with a white 2-way block connector, the case is stamped Shindengen P/N CF-03 which is the same as other models. The connectors must match your model.
One year warranty from date of purchase.
Made in England
A new CDi unit is only one part of the ignition system, so if a brand new ‘plug-in’ CDi unit does not fix, or changes the symptoms then your next action is to consider other parts in the system that may need to be replaced or repaired to clear the problem, especially where that system is over 20 years old. You can be sure that the issue will be found in an old part you have not yet replaced.
Our technicians have worked with, studied and manufactured ignition systems for over a decade and now we have published a guide detailing how to troubleshoot and overhaul ageing CDi ignitions that no longer work as they should. This publication is available free of charge on our technical support page.
