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New rims!!! Shiny new toys!!!!! Sign me up!!!

The Virago does not have points..it has 2 pickup coils. One for each cylinder. all the magic is in the TCI.

I looked at the Pamco. But, sad to say, I dont have a nice cool XS650. I have a Virago. V-Twin. Would have to have a Pemco type device on each cylinder.

Likely it could. But I am a medic and not an electrical engineer. Electronics has been my hobby since I was a teenager.... long long ago.. in the days of tubes... I still like to reverse engineer things and build things.. So, with my limited abilities, in order to build a new one, I need to...

Looks interesting. Thanks for the information. I can never have TMI regarding the TCI.

That is a good idea.

I got that schematic off here.. But it is built around a different chip. Still it gave me a starting point. I wrote to Mitsubishi, their logo is on the TCI. Explained the situation. They tole me to contact Yamaha. I wrote to Yamaha.... they told me to contact Mitsubishi. THe TCI for the...

Thanks. and yes, it is obsolete. Thus, any TCI containing that chip is also obsolete. If the M59201P is just a pre amp, then it wont be as hard as I was thinking. Thanks for that. I'm still searching for the exact specs on the chip.

Does anyone have, or know where I can get a data sheet for the M59201P chip that is in some TCI's? I am looking to come up with an alternative. But without knowing what exactly this chip does, that is a difficult task. Thanks.

Thanks for posting the schematic. I have a 85 Virago 700.. (I know it is not as classic as the XS650 but, its what I have... at least it is a Yamaha). Does anyone know of schematic for the Virago TCI? I have searched and searched... zip, nada, none.. I cant even find data in the IC chip in...