Not that I know about... at least currently.

However, I believe that Jon Pardue, The Wiring Man, is rumored to be designing a CDI for the CT90.

Here's Jon's web site... Some neat stuff on there.

I haven't found a way to email him on his web site.
But, I do have his email address, check my profile, click on my name in the top left corner and send me an email, I'll give you Jon's email address.

If you contact Jon, please share what going on, OK?

Paved roads, just more needless government spending...

I pick up my mail in Santa Barbara, California, USA.