Search Fuel pipe regulator.....and then check it.
What the @#!*% is that?
I know, just teasing, you meant Fuel Pressure Regulator, FPR.
That was my second thought. My first one was to get the idle adjusted correctly to 1300 rpm. The adjuster is on the right
side, near the top rear of the right fairing. And make sure the choke is pushed all the way in. It's on the left side. (I know that's a no brainer, but it happens to people).
If that checks out, then proceed to checking your FPR.
If you just pull the small vacuum hose off it, there should be zero signs of leakage. turn on your key to allow the fuel pump to prime and watch that small vacuum fitting for gas dripping while the hose is off. Since your tank will be raised, check that all
of your gas hoses are routed properly, especially the gas tank vent hose.