Topic: Idle Issue Tracked Down

[550Resto]

After initial warm up the bike has a hanging idle at around 3k, but when some upper force is applied to the underside of the right side carb bank idle comes back down to normal. I have checked for vacuum leaks and found none. I have messed around with IMS and brought them out 2 fills turns, however seems to be running a bit rich with some popping when throttled. I believe I may have fixed the issue with messing around with the throttle linkage. Will check back in tomorrow if problem persists after a decent ride.

[550Resto]

So far it seems that whatever I did to adjust the throttle has worked. The idle comes down to the range that I set it to, it does shoot down, but comes down at a consistent pace. I will be leaning out the IMS a little as they are out 2 turns at the moment and way too rich judging by the popping at idle. I can't recall how to put slack I'm the actual throttle grip? Other than that she seems to be running well.

Would the too rich conditions at idle cause the bike to die?

[550Resto]

So apparently my throttle cables were not the source of my issues. I warmed the bike up and then brought her into the garage and removed the cables from the carbs. After starting the bike and setting the idle, when manually blipping the throttle at the carbs it still rises and hangs until I lift up on the right side of the carb bank. I have taken a video which can be found here:

I have no idea where to go from here. I have checked for vacuum leaks at those boots from carb to manifold and found no leaks. I have also tightened the screws that hold the bands on to the boots and no change. I'm not sure if the carb bank is sagging causing the issue? Any and all help is appreciated as I am getting to my breaking point.

[TwoTired]

Has the carb bank been vacuum sync'd?

Cheers,

[BobR]

Have you made sure all the screws that hold the carbs are tight on the plate?  Maybe take the carbs off, check those mounting screws, linkage and as suggested bench sync them? Bob

[550Resto]

Hmmmm haven't double checked the screws to the plate. I had the carbs rebuilt by member Harisuluv and didn't think to check those. Carbs were vacuum synced as well.

[550Resto]

So I pulled the carbs and found 2 things that I'm not sure how to go about fixing. The first being that the choke butterflys don't seem to want to move anymore. They seem to be froze up so when I actuate the choke they don't move. They were working fine previously. Not sure the cause. The 2nd issue is that the throttle spring seems to stick a little or be sluggish when snapping back. Is there a way to loosen this up?

The carb plate that holds the carbs together was tight. I did remove it which thinking about it now might be the cause of the butterflies not moving? Still not sure why lifting up on the right side of the carb bank would have caused the idle to return to normal. I've attached a video that if anyone could give me some insight it would be greatly appreciated.

Edit: I got the butterflies to close. Seems whenever I took the plate off it did not go back on and seat all the way which caused binding when tightening the plate screws. Throttle also seems good.
I checked the boots and pulled them and put them back on so we shall see what happens.

Question: With everything installed there obviously should be no need to lift up on the carbs they should be seated where they need to be and everything holds everything in line where it should be correct?  So the air box holds the carbs and the manifolds hold the boots etc.