coils are coils

[DR]

I've always been under the impression you couldn't use a non CDI ignition coil on a bike that has CDI. Hence I have always hunted up the 'cd' type coils for my projects. Well I just had a coil fail on the TM125 and I had no CD coils 'in stock' so I fitted a 1968 U70 coil and crossed my fingers. It bolted straight on and works like a charm so another long standing no-no theory of mine has just been blown clear out of the water Just thought it maybe worth a mention is all

[pancho]

don't do it on cars that use an ordinary looking  coil as they can explode. cheers wally.

[TT5 Matt]

pionts coils will run on cdi systems but they get over driven,ok for short races/rides but woulden trust on a long haul through the desert without a backup.favourite thing to do to redbacks found under tanks was to give them a hit of ether to calm them down than transfer to a parts box and wait till they came to than connect a victa points coil to the ignition/coil tester on the cdi setting...results one peed off arked up spider that got torched with the extra fat over driven spark 

[DR]

  I take it you be talking from experience Wally?

anyone wondering, a '68 U70 is a piddly little steppy with the most weird motor I ever did see