rattling noise on my dt please help

[lee125]

hi my bikes just recently started having abit of a rattling noise its mainly heard around 4500 and onwards ive had the top end stripped and everything loookked ok no play or anything took it to my dealers and he said it was all fine to so ive put it back together and know think its coming from around the waterpump oil pump area does anyone know what could casue this type of noise around that area? ive attached a video of the noise its pretty hard to hear on teh video but in person you can hear it pretty easily any help would be much appreciated thanks

https://www.youtube.com/watch?v=wgiIqRuVELk
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cbt passed 01/07/2006 bike:92 dt 125 and 96 honda cr 250
theory:PASSED! A2 test:PASSED 08/11/2006 restricted to 33bhp for 2 years

[moto_psycho]

take the right hand side panel off and have a look, wouldnt keep riding it until you know personally!

ive got a big box of dt engine spares if you need any, as long as you pay for postage

[lee125]

[moto_psycho]

doesnt matter what i THINK it is, you wont KNOW till u take it apart

if ur top end is definately fine, that rules out

-piston rings or piston pieces floating about
-small end bearing
-power valve components
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meant to be restricted... aint