Yea I mentioned the "disk" in his first post. Worked for my metra.
if you turn the choke on or if you restrict your air filter and the bike dose not improve it's too rich. Keep going down jets and needle clips till you find something that work.
My bike would barley accelerate and would bog at anything over 1/2 throttle. With the choke on it ran great till 1/2 throttle after that it just bogged.
After removing the disk and upjetting the bike ran much better. I have a 92 in right now and am running rich all across the jetting range. I have a exhaust leak and did not want to jeopardize my motor by the leak getting worse and leaning my bike out.
Metra's and Gili's do not need big jets. Sacramento has a metra with a 78 jet there is someone in sf with a 74 in his gili.