idle problems

[6lostsoul9]

I am having a problem with my bike idling up to about 4000 after it warms up and has been ridden for a little bit, then I shut it down and start it and sometimes the idle is back to normal others it jumps right up to 4000, I have changed relays, the ignition box, carbs are clean, I am out of ideas, can anyone help

[yamaha_george]

I am having a problem with my bike idling up to about 4000 after it warms up and has been ridden for a little bit, then I shut it down and start it and sometimes the idle is back to normal others it jumps right up to 4000, I have changed relays, the ignition box, carbs are clean, I am out of ideas, can anyone help

Stuck choke cable ?

[6lostsoul9]

choke cable works fine, could it be wrong jets in carbs?

[jims 93 fzr600r]

out of sync maybe? just a guess

[sweekster]

Have you tried adjusting the idle down? You have a 1000 right? There's a hole on the left side of the frame when you can stick a phillips head screw driver in and adjust it. Turn it counter clockwise and you should hear and see it drop.

[6lostsoul9]

yes I have turned it down then it wont stay running, all the vacuum lines look to be hooked up except for 2 places where vacuum lines look like they go that are under the carbs on the crankcase, I dont see any lines that go to them though, this thing is driving me insane

[6lostsoul9]

got it running half way decent, the intake boots were loose and the carbs weren't sitting in them right