The other day I began to notice a big stumble off idle on my 77F when you really crack the throttle. Thought that maybe I had loosened up some gunk in the pilots from sitting. Took the airbox off and noticed I had no accel. pump shot when using the throttle. I am able to push down on the pump rod with a flatblade and get a good shot that way so the diaphragm is good. I notice that the cam that operates the rod does not move when I use the throttle. If I pin the throttle wide open I have to push the cam back with my finger in order to contact the pump rod. Is there a spring I am missing that might have flown off or something in the linkage that got loose? I also have a problem with the fast idle cam on this bike as I have to crank up the master idle screw when starting on choke dead cold.
