Engine rattle/knock when warm

[markaboot]

I have a FZS600 Fazer 03 with just under 20000 on the clock.
The bike runs sweet when cold but as soon as its warm a loud rattle starts and apart from being worried about braking something its doin my head in!

Fazers are know to have cam chain rattle but these symptoms usually occur when cold then quieten down once warmed.
I have checked the tensioner and it looks fine, its clean and moves freely (in the right dirrection).


On advice from a mechanic friend I added an extra bearing to increase the spring strength, this made no difference.
I then advanced the tensioner one click, again no difference.

So i have ruled out the tensioner as being the problem. This now leaves me with the bigger problem of what the heck is making that damn rattle?!!

I have a video of the bike starting from cold here as the noise develops

https://www.youtube.com/watch?v=fhgO09mtLiI&feature=youtu.be


and a quick vid in the back yard when i got home here (gopro out the case so you can hear better)


https://www.youtube.com/watch?v=sPV5rmBlwFQ

hope someone can shed some light on this, thanks.

[STONEY!]

sounds like cam chain to me but could also be a fucked little end bearing.

[Shinigami]

hmm thought it might be the same as my hornets started doing but it's not, mine makes a knocking sound but only once it's warmed up like yours but my knocking seems to only occur while stationary/low revs (can feel the knocking in the handlebar left side)

when revs hit 2k ish can't feel or hear it anymore
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"Once you realize what a joke everything is, being the Comedian is the only thing that makes sense.