Can anyone help, Please ?

On the YBR125 exhaust, there is a small metal pipe/tube welded on about half way, which connects to a rubber tube leading up to the engine.

What is that for ?? What does it do ??

Thanks

Can anyone help, Please ?

On the YBR125 exhaust, there is a small metal pipe/tube welded on about half way, which connects to a rubber tube leading up to the engine.

What is that for ?? What does it do ??

Thanks

This tube is an outlet from the Airbox. As far as I know, it dilutes the exhaust gasses to be more environmentally safe, but it also helps with performance. If you take the pipe off for a short while, the bike sounds a little louder, but the performance of the bike is horrendous. Best to keep it on and firmly tightened.

Yes, I thought it was something like that. Many thanks