make sure your intake boots arent cracked, reed gaskets not leaking, base gaskets not leaking. if all that seems good, the pull the stator cover off, start the bike, and then spray some carb cleaner towards the crank seal, if it changes your idle spraying the carb cleaner around the seals and gaskets, then you've found your leak. Or find an HQ member near you with a leakdown tester, or search "leakdown tester" on here for instructions on how to make one. Very nice tool to have.