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 module for the Harley Davidson/Aermacchi SST, STX 175 & 250 machines of the 1975-78.
Please note there is very little factory information available and this unit may have been used on other models.
We use a different connection method with 5 colour coded wires matching those of bike’s wiring, which has matching push fit connectors.
Please look at the gallery pictures to see a picture of the ignition unit this is designed to replace.
One year warranty from date of purchase.
Made in England
A new CDI unit is just one part of your ignition system. If replacing it doesn’t solve the problem or only changes the symptoms, the issue may lie with other components. This is especially true for systems that are over 20 years old. In many cases, the root cause is an aging part that hasn’t been replaced yet.
With over a decade of experience in studying, working with, and manufacturing ignition systems, our technicians have created a comprehensive guide to help you troubleshoot and overhaul aging CDI ignitions that aren’t performing as they should.
This guide is available free of charge on our technical support page.
