well i do know that they havent changed at all for some time so here is the specs for the 2000:jetting(310 mains,)(needle,327 0-2),(pilot,50),(needle id 8ady1-41-3),(slide cut 02), gearing 26-43,72 pitch chain, and a 53-44 cam for a reg. and a 47-44 for an rer. they both have 295 ramps with a green-blue spring for the primary