I've been having an idle issue with my Bigbore/FCR install since I installed it. It will start up fine in the garage no choke most of the time unless extremely cold. I let it run with the choke on for a few minutes, it will shoot up to 3-4k, then I let off the choke and it drops down to about 1800-2000 rpms. When it gets warmed up more it will drop down to 1200-1300rpms and want to die, I adjust the idle adjustment to get around 1800 rpms where it's most happy, then it warms up more and will shoot to 3k+, so I adjust it back down and then it will want to go even lower. It does this ALOT. Once the bike is fully warmed up and ridden for awhile there isn't any issues. Only for the first 10-15 minutes. tl;dr idle doesn't stay in place. Sealevel. 155 main jet 200 main air jt EMP needle clip 3 45 pilot jet no pilot air jet 2.25 turns fuel screw ap link wired delayed 1/2 turn SSW sent it with a 160, I just put in a 155. It did this when I had a 160 in there.