CBF125 ENGINE RATTLE // HELP

[k0ffream]

Yesterday whilst I was out riding I came to a stop and noticed a very loud rattle, it gets louder when you rev and I have no idea what it could be. I have a link to a video showing it, you could just hear it over my exhaust sound, apologies for that. Any ideas let me know, thanks.

Watch the full video because you can hear it on the left side alot better.

Link: https://www.youtube.com/watch?v=cs0KwDFjbtc

[Beehive Bedlam]

Sounds like a loose nut.

[Tankie]

cam chain tensioner maybe ?
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Always learning, everyday is a school day

[Rogerborg]

Nope, sorry, I can't hear anything but the exhaust and maybe a very slight tinging sound at 30 seconds.

I think they problem is that you're filming in portrait.
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Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike

[Beehive Bedlam]

[RhynoCZ]

I'm going to say there is a hole in the exhaust system or something is really loose. How to tell what? Get down on your knees, and start tapping stuff with your fingers, you may also use the handle of a screwdriver. I use this method to find loose on things quite frequently.

Did you put the exhaust system there? Check it properly, ''tap'' it around, check the only place the exhaust gasses exit it is the end of it (note, there might be a drain hole in the bottom of the silencer, but I doubt it).

Is there enough oil in it?
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'87 Honda XBR 500, '96 Kawasaki ZX7R P1, '90 Honda CB-1, '88 Kawasaki GPz550, MZ 150 ETZ
'95 Mercedes-Benz w202 C200 CGI, '98 Mercedes-Benz w210 E200 Kompressor

[MORTYandrick]

[haroman666]

If you hold your hand just nearly covering up the end of the exhaust, you'll surprised at how quieter you can make it, to help listen.

What's the oil level like? When was it last changed?
When did you last check valve clearances?
Can you feel any exhaust gas escaping from the manifold/exhaust port area?
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The mistresses: 2000 Honda CBR600f, 2000 Honda VTR1000