Description
NOT suitable for 1974-76 B&C models with a black plastic pick-up under the flywheel.
Our CDi units are hand built by technicians who are passsionate about ensuring your motorcycle performs as well, if not better than when it was new.
This unit replaces the following Yamaha P/Ns: 1M2-85540-20-00, 1W4-85540-20-00 & 1W6- 85540-20. The original unit was stamped “SSM F8T00”
Plug in unit. Wire colous and connectors match original Yamaha.
One year warranty.
Confirmed to time up & run correctly on DT250MX E&F 1978-79 models with black plastic CDi unit and matching connectors.
Some models use only one black wire meaning one could be left un-used when using our DT4. It does not matter if one black wire is not connected, the unit works the same.
Direct replacement for:
DT250 E&F 1978-79
DT250MX D&E 1977-78
DT400 D&E 1977-78
IT250 D&E 1977-78
IT400 D&E 1977-78
YZ400 D & E 1977-78
Important
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 approach ageing CDi ignitions that no longer work as they should. This publication is available free of charge on our technical support page.