The motorcycle comes with a subtle tone after 4,000 rpm.
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.