I am in need of a cylinder kit for Unison 90 Desert Cat, wondering if anybody can recommend a source? OR, I did find a cylinder kit for Predator 90's on ebay, out of Canada, for about $80 and have read Unison and Predator 90's are the same and wondering if anybody can confirm that before I order.

The only other option I could locate specifically for the Unison was a big bore kit at Lakes Motorsports for about $160. Wondering if anybody has experience with that. I believe I would have to rejet the carb but wondering if its worth it. Hesitant to make any changes that would degrade reliability.

Thanks!

 

I'd call::
WRH racing and/or Hetrick racing (.com)
They can help better IMO (info and parts).