Jumping revs vfr 800

The problem appeared overnight. Saturday was driving perfectly, but Sunday morning the problem reappeared. It behaved normally three times, the idle was stable, and I drove. If it starts, that's the cause. It only started with the hood open, where it immediately revved up. I've never seen a similar problem or such a variable idle anywhere else. The fuses are good, the pump is turning on, and nothing was done before the problem occurred. Does anyone have any ideas or have seen such a high idle?

Best regards.

 

What is "the hood" that you referred to being "open"? Upload a photo of this "hood" please.

 

I'm using a translator. Maybe he did something wrong. What I meant was that I could only start it by opening the throttle, meaning I opened the throttle, and when it started, it would rev up. Otherwise, it wouldn't start. He couldn't maintain idle speed because of that in the video. You can see the revs jumping around; they're very unstable.

 

check for any air leaks or hoses that are loose in the throttle body area.

do you have a service manual for reference ?

 

Thanks for the clarification.

What year is this VFR? How many km on the clock?

Is there any difference between a "cold" engine start, and a "warm" engine start?
In other words, does the bike idle better when it is either cold (been off for an hour or more), or when it has been running and is warm?