EXPENSIVE!!!! You could install RER, but you need to change the stator, clutch, pick up coil, install the electronics, etc....I priced one for my Mach Z-------$1100. I said FORGET it!!!!!
__________________ 1992 Ski Doo Mach 1 (SC-10/2 suspended) March '07 SF.com Sled of the Month!
1993 Ski Doo Mach Z 780 triple
2001 Ski Doo Mini Z
It's definately very expensive to change as SEG said. A lot of things need to be changed to get the engine to spin backwards. I would look into mechanical reverse as magoo suggested or look into buying a new sled with RER.