Hello there,

I've asked before, but I tightened the screws and the same problem started again after changing the oil.

I'm sharing the video with you.

When it rises from 3000 rpm to 4000 rpm, a buzzing sound is heard, and when it falls from 5000 rpm to 4000 rpm, it sounds the same.

This is not a compressor sound, but a very subtle sound that comes with the compressor sound.

They said the problem was loose screws and they tightened the screws, but after a while the problem persisted.

A chronic problem? Or does that mean the motorcycle has a mechanical problem?

I tightened the screw in the picture, but the problem continues.

No sound when engine is cold. But when it warms up, it makes a sound.

The air filter is so dirty, I didn't change it. Does this make a sound?

Help me find the problem.

Video Link (Watch this important video, because the sound is here.)

www(.)yourfilelink(.)com/get(.)php?fid=2133067

(.) => . => Replace

Vimeo Link

vimeo.com/356941461

If the air filter is so dirty, you should at least replace it. No sense starving your engine of clean, filtered air.

After watching your video, the engine sounds really dry, or starved of oil!!! Not saying that is true but it sounds horribly noisy out of the speakers of my iPad. Hope you get it sorted

I'm going to change it, but does it affect that voice?

I just changed your oil. The oil gauge is working.

But after changing the oil, the sound started again after 200 km. But I also did the chassis screw tightening. I just can't say it's the problem.

You changed my oil?!? I call BS.

Keep looking for loose screws or fasteners is my guess.

Do you have the proper amount of oil in the engine?

I would check all the bolts associated with the exhaust system.