SV650S clunk sound after spark plug change.

[fuzzfuzz]

Hello guys and gals!

After yesterdays problem (wet spark plug) i noticed a clunk sound from the motorcycle after i changed the spark plugs to new ones today.
The sound can be heard every time one second after i reved and the sv starting to idle.

you can hear the sound clearly between 14-16sec.
http://www.youtube.com/watch?feature...&v=SVAZSdrNF2E

Someone who know what it is?

the model is a sv650s 2004

thanks

[yorkie_chris]

Hard to tell sounds from videos, could be a bit of a misfire. You sure you have plugs seated down correctly?

[fuzzfuzz]

no misfire, im pretty sure it comes from the pair valve now