Ok I have a 99 Cbr f4. I had a cam chain tensioner put in and oil change. Now it makes this tapping noise. It only does it about every other time I start it up cold. And its not right when it starts it like a min or two after and when the temp gauge is right above the C. So it's not a knock. Also it goes away when it's warmed up so I have no clue what it is. Bike only has 5k on it so it's not valves. Any idea's? Here is a link to hear it. Listen closely. Thanks http://www.youtube.com/watch?v=7a0Yp...e_gdata_player

 

Sounds like valves, does it go away when fully warmed? I wouln't worry to much.

 

Yes it goes away when warm but it makes the sound alittle after start up not right away so I didn't think valves. Plus it doesnt call to check valve lash till like 12k. And it's only at 5k so idk. But if I can't figure out anything else I'll have them check. I was wondering if maybe the tensioner was put in wrong or something.

 

Does the sound go away when you pull the clutch in?

 

Oil changed with the same brand and weight?

 

Same weight oil was used and I used what manual recommended. Also when the engine is revved the noise doesn't get louder. Also when the clutch is pulled in the noise is still there. I asked to local shop and they said it's normal cbr's especially that model make engine noise from the timing chain. And I know it's in good shape and so are the chain guides. And the tensioner is new. I was hoping someone on here would have this same model bike and be able to comment.