Wanted - CDI UNIT TID12-03, 5V4-10 1982

[gman13579]

My 1982 heritage special uses the CDI TID12-03 and it's almost impossible to find. Does anyone have one they'd be willing to sell me or know where to repair one?

 

[Paul Sutton]

There are several threads scattered among the forums regarding repairs. There are usually three things that go wrong:

• A resistor may burn out - easy to repair if you know its value.
• The diodes fail - easily replaced
• The transistor fails: It is a Darlington NPN transistor and a more recent study indicates the best replacement to use is the ST901T. This is available on Ebay and is used widely in small Transistor Controlled Ignition systems (TCI - not to be confused with CDI which is capacitor discharge ignition).

If you are into electronics then test and repair the system yourself, but not everyone is up for that.

I would like to add to your question a little if you do not mind. If the TCI unit fails and you are unable to make a repair what are the replacement options? Are there drop-in replacement units available? I am thinking solely about replacement with modern electronic advance ignition systems, not a return to a points based system.

Thank you for any views.

 

[gggGary]

Any XS650 TCI 81 to 84 will work in your bike the 81 six wire do not have the sidestand interlock but are plug and play with a just a bit of trimming on the connector skirt.

 

[gman13579]

So I could use a type TID12-01 from those years would work and it would be fine?

 

[gggGary]

Yup littlebill31 had one for sale in classies a few days ago, tested and working!
I have done this myself, both ways; early TCI on a late chassis and late TCI in an early chassis.

 

[littlebill31]

$75 plus shipping. Works great, clean and nice plug.