Scooterotica

I have come into ownership of one of these kits in need of some work and have read that they can be bored out and relined to accept a Malossi 172 piston.
question is who can do it? Chiselspeed were mentioned but I have had no response from them so far

anyone else able to do the work?

I'd search for the origional bits to go with it, they were great. Less lairy than all the others but all the better for it.

pistons are rarer than hens teeth