503 clutch conversion??

Fuji!!

The P85 has to be an earlier model off a Fuji, or a newer 550 fan Polaris, needs no machining, and is of better quality. Trying to get spring and weight sizes, starting with older 500 EFI set up, other riders with this clutch, or others should chime in.

Ski-Doo did offer a TRA for the 503 several years ago, have seen it installed on early 1980's engines offered on EBAY, but i think they got away from it for cost, and weight reasons. http://www.tinytach.com/

DO NOT FORGET THESE DIFFERENT CLUTCHES CAN POSSIBLY TEAR THROUGH YOUR PRECIOUS LOW PRODUCTION BELLY PAN, ONCE THIS HAS HAPPENED SNOW WILL FORCE IN THE ENGINE COMPARTMENT AND GET THE CLUTCH WET, FUN OVER!