Does this fcr have a choke circuit, or is it a pure pumper?
You're set too rich on idle slash 1/8th throttle is what it sounds like regardless.
Remove carb and clean the whole damn thing, then baseline back to factory, then use the JD sheet for for changes. Remember, needle doesn't affect idle to 1/8th throttle. Pilot jet, air jet, idle screw (in place of air jet) are where your at.
Don't overlook battery on a motorcycle. remember that rectifiers and or most alternators on motorcycles DO NOT charge below 2-3k rpm.
Case in point, just put a "street" battery back in the ducati after the smallest possible was in there for weight concerns. I have no choke on my fcr's, and now it starts much faster, and has much better spark at cold. Just sayin
a near-death experience is just god following "catch and release" regulations...
john (johnny) henley