Bonneville America Forums Forums Technical Forums Performance Mods Bike Hiccups when warmed up

OK lets see if this makes sense-
I just came in from inspecting the squirrel condems...all seems to be well except for the cap I put on the port from the AI removal kit. It is cracked, but when blown in, I cant get it to leak. Would a pinhole in this create the problems I am having? ALSO, there is an airline attached to the center on the left side of the "can" (where the vaccuum lines go) that is not hooked up to anything. I cannot find ANYWHERE this would go...HELP!!!
From idle, when I crack the trottle, the bike hesitates then raps out.